All of these systems aren't helpful to QBs but the thing is, these coaches think less about actual QB development because turnover at QB is just as bad as turnover at HC. QBs are no longer allowed to fail and succeed. We care more about instant success than development. That's why we are looking for "modern offenses" which actually caps what a QB does in the system, simplifies reads, and is more reliant on skill players (that's why we always talk about how 'elite" QBs needs weapons instead of making the talent around them better).