This clearly points to a systemic issue rooted in several possible causes...
#1 The Jays analytics department wasn't using attack angle in their scouting processes or high performance center, and as such, most of the hitters resultingly suck at this.
#2 The Jays analytics department is fully aware of this, but trying to zig while the rest of the league zags.
#3 The analytics/scouting dept is fully aware of this when scouting, but wanted to prioritize the contact skill/lower attack angle to start with a base skill of contact, and try and teach the better attack angle as they developed their hitter to try and preserve more contact while also hitting for power ..... and they've just failed miserably at it.
My guess is #3. Popkins has already had success changing Varsho's attack angle we've seen that from that article that came out the other day. Springer also said he's reverted to a previous approach instead of trying to hit singles - so perhaps his attack angle has increased as a result.
It could very well be that the Popkins teachings have not yet reached the other player's ears, or it's also possible some of the players just haven't been able to make, or are resistant to change because of their track records of success to this point.