Probably because we have been out of top flight so long, a lot of our fans over value our players. As good as MVE is he has flaws in defending, top teams might be monitoring but will they take the plunge.
Exhibit A Gyokeres has not been snapped up just teams monitoring, hence his negotiating to lower his contract release value.
If someone comes knocking he will go. But the knock isn't a given no matter how highly we all rate him.
Agree to some extent but MVE’s biggest plus point is that full backs in the PL don’t need to be able to defend these days. Players like Alexander-Arnold are some of the worst defensively that you will ever see.