You do realize that would balance the game in the FT’s favour as they’re the majority? Just messing with you. (I like the house rules suggestion, very good.)
To the OP
The cost of nerfing the FT or buffing the Pred, will be longer wait times. Players will end up migrating to other games if it slips to much in the Predators favour.
Let’s say it a different way, the Pred mains need the FT players but those players can easily get a similar experience in dozens of other games that don’t feel like they’re balanced for the minority of the players in a match.
You should focus your energy on imagining new things not trying to remove stuff. With each cut you sacrifice a part of the player base.
PS. If you come back with less health and your a low health class, your one shot for most weapons, so no as someone who plays Scout I would not find this fair or balanced, same with the reduced gear, I’d come back with one heal, great.