Everybody can do whatever they like with their time. But if they want their exotic CPU architectures then they can support them themselves, no?

However, demanding mainstream tools to lag behind because of said exotic architectures is unrealistic. At one point we all want to progress and advance our craft, especially the one that pays our bills.

I'm not against multi-culturalism. But we can't have it at the expense of everybody else outside your small bubble having their tooling hampered and/or lagging behind on features that a lot of us need for commercial work (and not only, I'd argue).

Backwards compatibility is like everything else: it can't be praised as an absolute value and damn everything else.