They won't need webp in their codebase 5 years from now when everybody is using h.265 (much better than webp) except a couple old sites. Browsers can add anyth

They won't need webp in their codebase 5 years from now when everybody is using h.265 (much better than webp) except a couple old sites. Browsers can add anything they want at any time, but they can't remove things without breaking part of the internet. If you just throw in anything that is marginally better then you just accumulate cruft. Google's attitude is, if it's 1% better then do it. Do any marginal improvement regardless of how much complication it adds. But sometimes you need the wisdom to say this 1% isn't worth it in the long run.