JR 137
Grandmaster
Shouldn't they be designed to teach an aspect of fighting? So it probably would not work as a progression.
Depends on the kata being used. There's a definite progression in the complexity of the Pinan 1-5 series. They're short - 20 counts/movements each - and they're simple enough for beginners to intermediate students to get a good foundation before moving on to more complex stuff. Pinan 1-5...
After those, move on to the longer more intricate forms, such as Kanku Sho...
While it may not seem like it on the surface, there's a lot more going on than just block-punch-kick in those forms.