The way I view it, it takes character to work hard & improve even if you aren't where you'd like to be on a depth chart after a year or two. I see it as bailing on a commitment. Sometimes you're just homesick or unhappy or whatever, but this current landscape just expands the scope of justification to give up, whereas in the past you might be inclined to work through issues. And I think that builds character.
I agree with your comment regarding tampering. The portal encourages this due to the "quick fix" aspect of receiving help w/o a player having to sit out a year.
I think programs & coaches have always had plenty of pressure to succeed. I certainly won't deny being old school on this, I think the onus should be on the players, once choosing to accept a free education & now whatever NIL money comes their way, to perform to the best of their ability. They certainly aren't forced to stay, I just don't think bar hopping from school to school does the majority of them much good. Different sport, but Dawson Garcia is on his 3rd team in as many years. Talented player, but IMO hasn't improved one whit from his freshman year.
As dubious as I am about this, as a fellow Badger fan I'll also be pulling for the talent influx to lead to success. Fickell is playing by the new rules. Certainly can't blame him for that.