Possibly but United and Fergie where a different animal, about as guaranteed a trophy even a CL as you would likely ever be at any club.
The PL was so different then. It felt like there was United and everyone else and a different team would try and step up and match them
Imo, Newcastle tried the hardest, at least until Arsene Wenger arrived and started actually challenging Fergie as the best coach rather than just buying players and hoping for the best.
Then Chelski really "disrupted" the establishment.
I can see why Shearer went to Newcastle. 55k sear stadium, fan, money, actual challengers (well, ambition to challenge)
I can't see why a 28 year old who has been at a club for 15 years and repeatedly witnessed how we FAIL to show any ambition year after year and penny pinch at every chance would want to commit the last 3 or 4 years of his career to it when it's actual worse than ever.