Could I rename a slender column like wall to avoid seismic limits of ACI Code? Could I have big wide beams framed with slender "walls"? Wath about reinforcement development and about joints in this kind of structure?
I don't have seismic experience outside of school, but renaming things to avoid code restrictions seems irresponsible at best. Code restrictions are there for a reason, particularly in seismic areas. The code provides definitions for its terms also, so just renaming it at best makes it seem like you're hiding something. A rose is a rose afterall.
Maybe there's some provision that states if you do some ultra Mojo analysis you can do what you want.
In general, the law requires that you apply good engineering judgement. In fact, just adhearing to a specification blindly is unacceptable. If common practice for a specific application is to do more than the specifications require... you are legally obligated to provide the common practice as a minimum. Merely meeting the code will not get you off the hot seat if there is ever a problem.