No point in owning your own platform unless you are in the business of building and running a platform. The real advice is to always be ready to abandon your platform at any moment and move on to a new one should its policies no longer be in your favor. Always be preparing for this scenario. What’s your contingency plan?
So you could rephrase(?) it as, "always own your platform"! Where "own" means to take ownership of one's choices and have a contingency plan, so one is not in the extremely embarrassing position of trying to blame one's bad business decisions on one's provider's business decisions (valid or not).