Well, yeah, all you have to do is look at Iran under Mossadegh to realize that reactionary forces often stem from colonial oppression. What doesn’t make sense is denying that those forces are reactionary. You can understand why something is happening and still call it what it is.

The US is largely at fault for how reactionary Iran is, but Iran is still reactionary. If you never learned to swim because your parents wouldn’t let you near water, it isn’t your fault that you never learned, but you still shouldn’t jump in the deep end.