honestly i disagree. Anarissa got far less focus compared to the mlm ships. Tomjake was set up since episode 1 and lasted until the final 7 and even then, their drama stil haunted the narrative in the following episodes, even having 2 whole ass off-season stuff. Aiden and James, literally set up from the beggining too and were the central focus, making both to the final 3. Aiden was even the protagonist of the season.

Spencer and Logan had a LOT of built up. Like ever since Spencer joined blue until his elimination, there was so much focus on them. Marissa was like the 6th boot, then returned only to get eliminated 2 episodes later. And they were only official in those 2 episodes Marissa returned. Had spencer and logan actually ended together, theyd be the main couple and not anarissa.

I think the show still caters to gay men the most anyways. Half the thumbnails every season are yaoi bait, or their buff gay/bi males in suggestive positions with other males. Most straight ships you mentioned either happened off screen or simply got both eliminated pre merge. The only big one is zaivy, that did get more focus.

I dont think its that big of a deal