No experience received after respawn time out

They should still give you experience, however I think right now you still have to wait until your whole squad is wiped before getting any exp. This is because your squad can still win the game even with you timed out which would result in more exp.

But yes, they should add in that if your already completely timed out being able to still get SOME exp even if it's a little less than usual. They basically have this in place so people don't just rage quit or sit afk for a few minutes and then leave to get free exp, this would cause a huge amount of players either making accounts to grind out free skins that they actually want or just people grinding out max level period by just sitting afk and never playing the game, wouldn't be hard to make a simple button press bot that just keeps sticking you in games for 5 minutes and then leaves the lobby because by then they'd be dead anyway drop hot, get killed, respawn times out leave get free exp. 

I'm sure there are ways around this but currently the exp doesn't even matter that much anyway, you stop getting packs after awhile and nothing to grind for after that until the BP is released so I wouldn't worry about it. Levels are meaningless in game anyway it's more about ADR than level.