Just curious as this was my overall sense when I lived in the Bay Area and it would be consistent with a lot of the corporate "censorship" of various diverse viewpoints that's going on now.
Yes, but with an important caveat. Most all good business leaders are pragmatic, because if you're not there's a very good chance you won't be a good business leader.
However, Parler's entire raison d'être was as a right wing alternative to Twitter et al (you can say "free speech" alternative all you want, but it's beyond ridiculous to claim Parler's community wasn't extremely hostile to liberals/progressives on the site, to the point that I rarely if ever saw any on there), so it would be expected for him to be quite political as it aligns with the business culture of his company. His problem was that he wanted to make his stand without an adequate technological plan if he had to build everything off the major (and even not-so-major) cloud providers.
Granted, given Parler's mantra they should have known they would be particularly vulnerable to getting kicked off AWS, but I'm highly skeptical that many Silicon Valley darlings (and I've worked at some) would have been able to spin up something quickly on a completely new hosting platform.