Buddhist means practitioner of Buddhist teachings, someone who has taken refuge. It does not mean an attained Buddha.
Who set the expectation that liberation is a measure of practice and not the process of practice itself?
Plus it really betrays the ultimate purpose of this teaching. The buddha eliminated his own ego so he did not suffer other people's mental discord. He simply understood it as such and taught accordingly.
This is the real problem with expecting various traditions of various methods to all act according to the same framework.
It is even worse when there are traditions here with known diametrically opposed entry points and perspectives yet they are constantly put odds as if there is something to be won.
IMHO this is the problem with delegating everything to external agency be it a teacher, a god, a priest or any other authority but one's own desires and volition. There is no wizard of oz pulling the switches and pushing the buttons behind the big screen that one's own mind projects.