sure, i mean that was how early group editing works, but generally you want to preserve state from both (if we both start typing in the same spot, we both add stuff). Also it prevents any offline editing or high...lag editing really. unlike gaming which needs to be realtime this is much softer.

but no you dont need it

This needs to be as realtime as WhatsApp. If your internet connection gets bad often enough to have trouble supporting WhatsApp, then my heart goes out to you, but thankfully this is clearly not normal for the most of us most of the time.

And if this happens, your experience is going to be terrible anyway.