Seems to me, the real question that should be asked here is not "Are these feats overpowered?", but rather "What are you going to do about it?"
The feats are in the game. They exist. If you are a player and your DM is letting you use feats, then you can select them. Likewise, if you are a DM and running a game, you have to decide whether or not to use feats, whether or not to allow SS/GWM to be taken, or whether or not you edit them.
But unless your idea is that if you complain about them being broken long enough, WotC will actually errata them... there's nothing really to talk about. You use them, or you don't use them. You leave them alone, or you re-balance them. And whatever you decide... it's entirely up to you. But YOU have to do it. As much as you want them to, WotC is not going to errata them. They've already said that errata is only for correcting mistakes in the writing of a rule, not in what the rule itself is. So these two feats will always be in the game. As they are. Which means that any changes you feel need to be made have to be made by you. The most you might hope for are new Sharpshooter-esque and Great Weapon-esque alternate feats getting released down the line... but again, that won't remove the current feats from the game. They will still exist. Which means that you, yourself, will have to make the decision whether or not to use or allow them once the new feats are released. Which is the same exact thing you have to do now.
Yeah sure, it'd have been "nice" if all the feats worked exactly right and were perfectly balanced for your particular game. That would have been lovely. Every single one of us getting exactly what we hoped and dreamed of for our D&D 5E game. But... that didn't happen. Sorry. Things don't work perfectly for each and every one of you. Which then brings up the ultimate question as I said above...
"What are you going to do about it?"
The feats are in the game. They exist. If you are a player and your DM is letting you use feats, then you can select them. Likewise, if you are a DM and running a game, you have to decide whether or not to use feats, whether or not to allow SS/GWM to be taken, or whether or not you edit them.
But unless your idea is that if you complain about them being broken long enough, WotC will actually errata them... there's nothing really to talk about. You use them, or you don't use them. You leave them alone, or you re-balance them. And whatever you decide... it's entirely up to you. But YOU have to do it. As much as you want them to, WotC is not going to errata them. They've already said that errata is only for correcting mistakes in the writing of a rule, not in what the rule itself is. So these two feats will always be in the game. As they are. Which means that any changes you feel need to be made have to be made by you. The most you might hope for are new Sharpshooter-esque and Great Weapon-esque alternate feats getting released down the line... but again, that won't remove the current feats from the game. They will still exist. Which means that you, yourself, will have to make the decision whether or not to use or allow them once the new feats are released. Which is the same exact thing you have to do now.
Yeah sure, it'd have been "nice" if all the feats worked exactly right and were perfectly balanced for your particular game. That would have been lovely. Every single one of us getting exactly what we hoped and dreamed of for our D&D 5E game. But... that didn't happen. Sorry. Things don't work perfectly for each and every one of you. Which then brings up the ultimate question as I said above...
"What are you going to do about it?"