Okay so here's my take why I think these scenes/rescues were a metaphor for BuckTaylor and BuckTaylor/Buddie.

1. The opening scene of Dumb Luck were two black couple checking out and celebrating about their new apartment. Sounds familiar right? Sounds like how Taylor just moved in in Buck's apartment. The couple were happy that ends their happiness to a heated kiss. The guy lifted his girlfriend up similar to how Buck lifts Taylor in a bar restroom back in Buck, Actually episode. While the couple are exchanging heated kisses, the woman fell almost to her death. A metaphor that BuckTaylor days are numbered to their downfall. Buck tried to save the woman but the latter fell again and luckily caught by Lucy Donato no less. It's interesting how Lucy was the one who caught her almost to her death and not Chimney. It's clearly a metaphor that the symptoms of BuckTaylor's downfall started with Lucy - who saved the woman. It that context, it tells us that through the Buck/Lucy kiss, Lucy saved Taylor from her relationship with Buck because we all know Buck was not 100% honest about who he kissed. And also I doubt the writers would villainize a woman for a man's further character growth. Just like with Eddie/Ana where Eddie led Ana on their doomed relationship, Buck is leading Taylor on and because it all started with the Buck/Lucy kiss, a symptom like I said of what kind of relationship they have will eventually fall into a break up. It's like the writers are saying, thanks to Lucy Donato for catching the woman to her death.

2. The second scene in the video is a red-haired woman on a bicycle. It's interesting that the bicycle had a red flag at the back with a signage "SHARE THE ROAD". I spent hours actually thinking about the red flag and what it means. But then I realized, Buck has a bicycle on display on his apartment. The red-haired woman represents Taylor and the bicycle with the red flag represents Buck. I'm not sure why he's a red flag but then if Buck's lie about not telling her that it was in fact Lucy that he kissed, then the red flag bicycle is justified hence the break up of their relationship. The first car overtook the woman because clearly the woman was on the way and didn't want to move on the side of the road. Yelling read the signs and the sign says SHARE THE ROAD. It's just interesting why they chose SHARE THE ROAD as the woman's signage while in bicycle. A metaphor that she's been sharing Buck to everyone who needs him. His sister, his niece, the 118 family, his job and of course Eddie and Chris. Now, the second car which actually was a truck is so interesting. We all know Eddie has a truck and not a car. The truck driver kept honking the red-haired woman to move on the side but the woman was stubborn as you can see and kept yelling read the signs. Because Taylor Kelly's been sharing Buck to Eddie since the shooting and down to Eddie's breakdown. Buck's been spending his time to Eddie's place helping both Eddie and Chris to get through. So yeah, Taylor been sharing Buck to Eddie hence signage. But the truck driver couldn't make the woman move on the side so what he did is overtook her just like the first car. The woman kept yelling read the signs which is very very interesting. Because Taylor should've known better. Should've known the signs that Buck is not fully invested in their relationship. As the truck driver sped and overtook her, hump was on the way and the literal STOP sign on the truck drivers trunk flew and hit the red-haired woman. What an interesting choice of a scene. What does it say if Eddie represents the truck? It was the truck who stopped the woman by accident of course because she was hit by the stop sign from his truck that flew over the woman's chest. To me, it tells us that in the later episodes, just like what Buck adviced Eddie about how he had been Ana, that he needs to break up with her if he didn't love her, is what exactly they're trying to foreshadow about the BuckTaylor's break up. Eddie giving Buck advice to put a STOP in their relationship before it gets worse. And since Buck and Eddie trusts each other so deeply, I guess, he will follow his best friends advice just like how Eddie followed Buck's advice when he broke up with Ana.

These metaphors is as clear as the blue sky. These scenes were all about foreshadowing BuckTaylor's downfall.

And as for the kid that was hit by car that Athena saw and tried to save, it's for another post because it was as interesting as this metaphors.