I'm pretty sure there are also "degrees" of blister packaging too. You've got the ones that are just foil, you've got ones with a paper backing, and then you've got ones where I'm pretty sure the paper is glued to the foil so it's basically impossible to get it to separate and you have to cut it out with a knife.

The first doesn't really bother me. The last one is absolutely obnoxious. I'm guessing the FDA is pushing the last type for "drugs of concern" like sudafed or imodium.