I just don't think we should be expecting much different news than what we are hearing. These are two QBs who have never got very many reps up until now (more true for TS than JM).
As I've been told by someone who knows more than me, CNS runs practices during the season kinda like the NFL model. After fall camp he narrows down to roughly 40 players or so and they are the ones who get the reps, which would roughly be 1 and 2s on the DC. However, with the QBs, apparently QB1 gets the vast majority of reps during practice and that would mean QB2, aka, Jalen Milroe (last year) probably didn't get many live reps during the season up until BY got hurt. No wonder he looked so rusty the next week. TS, being QB3 last year was probably running scout team and certainly was not getting many live reps during the season.
Rising up to the level of being a top notch QB at the major collegiate level is a tough ride and every great QB has to struggle to get thru it. I think both of these guys are at the struggle point. This will probably have to continue through fall camp and as many have said possibly the first game or two.