I don't need your permission to carry on, even if I've hurt some feels in there for you.
The hagiographic pleadings from Murphy fanboys like to gloss over the simple fact, not framing, that the guy quit on the team. You can put all of the language and reasoning around it in an attempt to make that simple fact hide in the background, but it is still a fundamental fact. He quit on the team at a critical moment in time, not "doing right by Texas", actually the fucking opposite, and you cannot dispute that fact with any credibility.
To your claims, the portal doesn't close for playoff teams until after they've ended their run. He could have waited. Duke gave his agent a now or never offer, so rather than play things out, they jumped. They're doing it again this year. If you think that Sarkisian was excited for the guy to leave, or that the team cheered him on out the door, then you're further in fantasyland that I thought.
The Maalik Murphy Fanboy phenomenon is one of the more ridiculous things I've witnessed in longhorn netdom over the last 2+ decades. The guy was a nothing at Texas. He actively attempted to lose one of the only games in which he played. He quit during a playoff run for a money grab while receiving NIL at Texas. He had discipline issues that limited him earlier in his career.
"But he was liked by his teammates though!" So what. That's a lot of guys when the culture is right for a program. Then he goes to Duke and he's a turnover machine. Then he quits during bowl season and goes out for another grab. And you idiots are still bizarrely cheering the guy on.
I'm waiting for the fucking canonization process to begin, for Christ's sake.