Maybe not, they may have fucked themselves, because something that has changed in that period of time is that older folks have realized edibles are very helpful for tons of medical issues. They are very popular with older people now, I don't think the "think of the children" strategy is going to work this time (see Florida's medical program for example, they have edibles and are more conservative politically, their program started a few years after PA if I remember correctly)

So Republicans forced the PA mmj program to disallow edibles "because of the children", if I'm remembering correctly that was extremely important to them. Now that it has resulted in unregulated edibles being more easily accessible by minors, I think we can all agree that was a dumb fucking move that didn't help anyone, children included. (And, they should have been aware this was a potential issue because we have been dealing with synthetic cannabinoids/Spice/K2 for over a decade now, luckily these products don't contain those substances but it's still related and something they should have been aware of, they're in every gas station)