All valid... I feel like context is key here tho. Its not like AM is a fellow freshman and we don't quite know what we have. The fact of the matter is, 2AM doing half of what Luke did is EXACTLY what he did against northwestern and exactly what he did for the majority of last year. If these 2 had similar experience, and age, I'd fully agree with you that by no means was Luke's performance reassuring, if anything, there are more concerns particularly around our ability to pass. That being said, he's being compared to a guy who has had more than his fair share of opportunities to solidify the QB job and he didn't get it done.
While I agree 2AM has a much better arm, something is off with the guy either in his ability to go through progressions or just a lack of mental confidence he can lead a receiver open. While I want more down field passes from Luke, I still would make the argument the offense just seems to have more of an edge with him out there compared to 2AM.
Old adage still rings true, you dont have 2 starting QBs in a qb battle, typically you have 2 back ups that has major flaws preventing one of them from being the clear cut winner. Might not be pretty but i'll take the offense with Luke, for another week, over reverting back to an offense that looks more disjointed, slower, and one that has too weird of an obsessions moving the ball sideways instead of north and south like we've seen for 2.5 years now under 2AM