I don't know if I necessarily agree with this, and I usually agree with most anything emedpa says, but PA to DO would be the same thing as PA to MD, I don't expect that DO schools will shorten there curriculum for a PA. Atleast they didn't for me 😉
Perhaps some shorter clinical portions for PA would be good, but even a newbie out of PA school is totally different than a PA that's been practicing for 5 years or longer, and a new PA not even in practice wanting to go to medical school, I wouldn't want them to skip any of the clinical portions, because they just aren't seasoned enough to be able to do that.
In addition the amount of information in medical school is substantially more than that during PA school. I don't think that you could guarantee continuity of education by dismissing some requirements for PA's and shorten medical school for them. By making them go through it all, it assures an even field for all and that they've been presented everything, etc for a physicians education. Trust me I know, I've done one path, and still on the second path and it's more than what PA school was.