HLS and H.264 are by far the most popular streaming technologies according to a 2019 survey. If anything, I’d say Apple made the smart bet, and that WebM is the real distraction for content delivery providers.

Technology license cost is not the only consideration that goes into business decisions. Consider the whole end to end process of making, distributing and consuming video, and all the parties and technology providers involved, not to mention installed bases, cost of switching, etc.