My thoughts and posts on this one single topic on here probably rival most any other single topic in the last 10 years or more. Maybe I end up way off the mark, but to this point they've been consistently in line with what has happened re: Milroe. I'm not patting myself on the back and pretending to be some Draftadamus. I'll give thoughts and opinions on him, and have, but most of what I've shared has come from friends in scouting circles. 2 of which have scouted him in person, at both games and practices. And pretty much all of which are in Mobile right now, along with the myriad of other eyeballs that are on Milroe and the dozens of other players.
As to the quoted reply, I don't really understand your first point. He's been training privately (like they all are) to work on getting better. He's not a lock to be a top 5 pick, so Sr. Bowl week is a very good opportunity for him to improve his situation (like it has for countless others). If he had skipped it, questions would have been asked. The fact that he showed up is already a positive for him.
On the in-game stuff, I've said, again, he will likely struggle with the one on one in-depth interviews later on when he has his team visits. At the very least, it'll be one of his biggest hurdles. He's not going to be a Bryce Young who can decipher coverages and give the right answers without skipping a beat. But, he can learn that stuff. And it helps that he's a bright guy, which scouts will easily find out while doing their homework. That, to a degree, will alleviate some of the concerns.
Also, how he performs in games does matter. A lot. It has both helped him and hurt him. But scouts and GM's aren't gonna sweat much over an exhibition bowl game and they aren't even gonna to waste their time on the Senior Bowl itself. He's got a lot of "tape" out there after playing 2 full seasons in the SEC and a good bit of it speaks for itself. Still, his workouts and such going forward will be important as certain teams will be looking for certain things out of him. And my understanding is (not surprisingly), some teams like him more than others. He can knock it out of the park from here on out, and he won't get a round 1 grade from every team. And it could also be a situation where the team(s) that like him the most, don't have a need at QB.