Take away the healing part of "Help" so that it requires you to cast a healing spell or administer a healing potion to revive a downed character and it won't feel nearly as broken or cheesy.
By administer I mean slowly pouring it down their throats, not throwing and shattering the potion next to their body.
I fully understand your criticism. Larian's biggest weakness is a lack of immersion. BG3 is constantly reminding you it's a video game with unrealistic actions. It's a bit frustrating because previous CRPGs have shown you can be realistic and immersive with fun gameplay.
Make these changes and expect thousands of players storming forums and discord with bug reports that something stopped working and complains game is too hard now.
Worries me that hundreds of thousands people first exposed to D&D 5e via BG3 will think it's a nonsensical system, because Larian took liberites implementing it.