If Stafford was going to play like this, we should've just kept the picks and stuck with Goff before drafting a quarterback of the future. Might I be harsh? Sure, but I expect more from Stafford.
He made one mistake today. That's it.
It was a bad one, and the QB can't give the other team points. He's done that three times in the last three games.
But the fumble is hard to put on him - Whitworth got beat immediately and Gary hit Stafford's arm in a weird way.
But saying we should have kept Goff is beyond a bad take at this point. He's not a starting caliber QB so from that perspective, evaluation of the trade is done. It had to happen to get rid of the contract.
The more relevant talking point would be to discuss how they gave him that contract in the first place.
It hasn't been Stafford's best games, but our defense isn't what it was last year. If it was we would likely be 9-1 right now. It's not fair to hold the defense to that standard - I point that out because part of your comment about saying the trade was a mistake has to do with how the team is playing overall. We didn't lose a game last year when scoring 28 points or more.
This years Cardinals, Vikings, Ravens and Packers weren't on our schedule last year. Rather than 4-0 against a bad NFC East, were 2-1 against the NFC North with a trip to Minnesota very possibly going to make that 2-2.