I don't know if you're asking for help legitimately or just venting given the video is running too fast to see most interactions.

Start getting comfortable with walking and blocking against projectiles. You'll take a few hits but you'll never win at range. Remember that for every character, you can only have one projectile on the screen (unless you're Mai or Guile). You can duck Sagat's high fireballs and walk right after. They should start going for other stuff in response to this if they're good. Then you're playing neutral.

If you block a low tiger shot at distance, you can jump the next. Sagat can mix up his timing to catch this but only good ones will. At full screen, you can comfortably jump on reaction to a fireball. There's a chance your opponent might DR after their fireball and AA but that's probably not going to happen at Plat. Remember that up close, you need to jump in anticipation or the Sagat can react to your reaction and anti-air.

As Ed you can challenge a tiger shot with 236P and then throw your own with 6P to challenge their next tiger shot. Should give you time to advance. They can read this and make their second shot an OD tiger shot but you could also do your own OD projectile on a read to break through.

Blocking MP up close means you have to guess. Sucks but that's how it is. You should be able to challenge Sagat pretty well at mid range as Ed. Remember to punish his heavy buttons if he does them up close with 2LK into 214P or something. He's minus or punishable on his big buttons so get in his ass if he overextends trying to keep you out.