Yes, Orthodoxy would fall into that too? What is missing, however, is any evidence that all the OT righteous did not believe in Judaism, or better yet -- that the modern-day Judaism is not the Judaism of the OT righteous.
In other words, one would have to show that the meshiach of the rabbinical (post-Jamnia) Judaism, is different from the meshiach that Moses, Isaiah, Isaac and so on believed in, if they believed in one to begin with!
Please ignore the question mark in the first sentence in my previous post.