They’ve said he’s a hard hero to balance, it’s the same reason Mei and DF only got the slow time buff, less ammo on alt fire, and reload speed buff instead of anything impact-full. There have been a lot of good suggestions on changing Bastion
I’m not trying to plug this thread but in the possible changes, possible rework, and the recent threads section in that post it has a ton of change/rework ideas across all of them. I put my favorite in the main post (the possible rework section).