Jordan Love sat behind Rodgers
Rodgers sat behind Favre
Brady sat behind Bledsoe
Rivers sat behind Brees
Young sat behind Montana
If you have talent, you'll get a shot. Declining because you just want immediate playing time is not a good look.
Context matters, though. Rodgers was drafted because the Packers thought Favre was going to retire much earlier than he did, and that's eventually what caused them to finally push him out.
The Chargers thought Brees was a bust, and they effectively had Rivers sit behind him for a year more because it was just what you were supposed to do back then, and the fact that they couldn't get a deal done with Rivers until really late in training camp. In fact, Brees randomly having two good seasons on his way out was seen as complicating things.
Part of Brady's story is that absolutely no one viewed as more than bench depth in the draft process, and it took Bledsoe nearly getting legitimately murked on field to get the job.
Steve Young was perceived to be a bust due to going to the USFL, then the NFL and being mid to start his career, this being a backup until the Montana got hurt, and even then, I think he still got temporarily benched.
None of those cases are the same as this, where a team allegedly approached him to be drafted behind a guy in his prime that they have absolutely no plans of moving on from any time soon. You really can't fault someone for wanting a situation where they have what seems to be a more realistic path to meaningful playing time.