The new radius might be too small for a few 2v2 maps where you could previously put it in range of both HQs, but for all other game modes (where you don't really share medics, or put the HQ somewhere at the front) the new radius is really good imo as it has made the medics much more responsive (as they no longer keep following squads across half the map). It was a change where simply the upsides (1v1, some 2v2, 3v3, 4v4) outweigh the downsides (some 2v2 maps).
The sprinting medics were enough of a change to help with them chasing models around too much, reducing the range so much is overkill and creates more issues for people than it fixes in my opinion. There are times when you can place it right up next to your main HQ and if the angles are bad/awkward the medics will ignore units that retreat to the far side of the HQ. Doesn't seem to affect Ost medic bunkers, something to do with the starting point of the 20 range I assume.
Even on 2v2 maps where your bases are apart, I can no longer place a Battlegroup to both heal my units at HQ and heal a carefully placed LEFH.
Playing against an enemy who likes to shell/rocket arty your base after a big retreat? Enjoy losing even more squads due to having to stay clumped up even closer to your healing tech.