It will be improving the quality of search to blind users - their search results matter too. It will be improving the quality of search for non-blind users bec

It will be improving the quality of search to blind users - their search results matter too. It will be improving the quality of search for non-blind users because websites will be structured better for Googlebot. Any gimping will be temporary as the websites rush to comply. The gimping can be non-existent if Google simply announces ahead of time that accessibility will weigh more heavily. That'll give devs time to adjust. Look how Google pushed the adoption of HTTPS.