Misuse the trademarks licensed to one of their competitors while relying on that competitor to provide them infrastructure for software updates and provide product improvements.

Adjusting their product names sounds like a small change they could have made to avoid antagonising a close partner.

Running their own plug-in mirror infrastructure is something companies often do to reduce the risk from relying on a third party.

Similarly having some stake in the development of WordPress reduces risk of them being shut out if there is a license change that necessitates a fork.

Less about caving in on wishes as more that it's risky to choose both to rely on a third party and wind them up at the same time.