Wrong
Stafford has done nothing to warrant such an assertion
You are wrong. As evidence of what else LA had to give up to make this swap. The only thing Goff has on Stafford from a QB standpoint, is he is younger.
LA wasn't the only team that tried to land Stafford. The Lions got other offers from SF, WAS, and maybe even IND. Did LA give up too much? That's debatable and will be settled in time.
Goff is a system QB. He thrived the 1st year under McVay. Then.. The Super Bowl against the Patriots happened. He was figured out. Hasn't been the same since. He's progressively got worse and worse.
Everyone on earth agrees the Lions are a shit team and organization. I'm not sure even Tom Brady could consistently win there. It's been that bad. Stafford is considered a good QB despite their ineptitude. That says a lot. His career will now be defined by how he performs with a good team the next 3-4 years.