He will still be unplayable and by far the worst support
None of these changes fix why he was bad. They just make him slightly better at the things he was already good at (which wasnt much, mostly healbotting) and ignore his core design issues.
In fact a few of these changes just make him objectively worse to play as and with. Now as a teammate you will get pulled just because you were missing 50hp and he needed to heal you