Also some honors programs either don’t take introductory course AP credit or very strongly suggest the student re-take the honors intro course. UT Austin computer science, if I remember correctly, doesn’t want anyone to skip its intro CS course so it funnels students with AP CS credit to the honors intro course. Depending on the major, students may be either required or encouraged to take courses at the college even if they have AP credit.
I find more of what I’d consider “misleading marketing” comes from the high school and from College Board. I think every AP teacher I’ve heard at parent night touts how much credit students can get, though to be fair they usually focus on credit at Texas publics which are really great about awarding AP credit. And of course College Board falls all over itself talking up the credit to be gained through AP. For the colleges tours I’ve been on, the talk tracked pretty closely with the actual AP policy of the school. The MIT rep was clear that AP or similar rigor is expected in high school classes but AP credit is very limited. Tulsa’s rep described their AP credit policy as “generous” and it is. And so on.