It's about balance. By definition, you could say why not all have one super nuke rocket that clears the entire level immediately, otherwise anything else is a waste of time. I play with some friends who carry like 200 heavy ammo synths and they thinks it hilarious, which it is, but don't pretend it doesn't make the game easy. I am no elite player, I play for fun, but even POE34 and raids on hard are fine for me as I can walk around with a tonne of heavy ammo synths. I really wouldn't be surprised if bungie look at this at some point. You can either agree or disagree.