What exactly constitutes an Amarrian conservative to most people anyway? I think we need to define that before we can answer the original question as to why there aren't so many of them anymore.
I would say that “the Amarrian conservative” is an empty signifier with a variety of meanings. Likewise “tradition” is always socially constructed and a fluid concept. Just take a look at various independent Catholic groups, like the Old Catholic Church or Sedevacantism for example. They all think they’re right and base their arguments on what they call “tradition”.
Let’s just imagine the history of Amarr is this line here:
——————————————> [today]
Every pixel represents thousands of years and within this years thousands of cultural products etc. etc. can be found. It would be impossible for every human or institution to know or even to reference them. This natural limitation is also responsible for infinite variety of reference. And now some/one of this varieties of reference is deemed “tradition”:
——(x)————x————x—x—>
But this could also change to:
—xx—(x)————x——————>
Conclusion: This can only be an IC debate!