> For this project and its day-to-day maintenance, unequivocally.

Insisting on personal assertions does not pass as a justification, particularly one based on such specious reasoning.

> One of Richard's philosophies is "freedom means being able to take care of yourself," (...)

That's fine. Irrelevant to the discussion, though. If you're really really concerned with somehow losing access to a build tool managed by a third-party, nothing prevents you from storing the tool anywhere, including in a separate Git repository.

Just say it's personal taste and technical merits play no role in the decision. All these wild claims just sound silly.