I get what you're saying, and I agree with it in theory. I just don't think we will ever see the type of "commitment" we might want to see when we play at this level anymore. I don't think it's wise to have a blanket policy that once you enter the portal you can never come back if the goal is to win. Like most things in life, I think it should be case by case. If an All-American WR wanted to move up and then changed his mind, it's a lot different than if a third string WR entered the portal and changed his mind.
I guess I view it a lot like playing time. It's pretty easy to explain to a bench player why he doesn't get as much playing time as the dude two spots above him on the depth chart. I think it would be equally easy to explain why you allowed someone in the portal to come back but not another. This isn't really in reference to Clif, but just my general opinion.