Hey Hooligart,
"Healing gems will be removed from the field finally, the set with a passive for healing will be updated in the next patch."
Won't you put them back until you change the abilities?
1. They can help a lot for the beginners with low hp, even makes the game a little bit more interesting on that level. (I know because in the current state the game is so unpleasant as a veteran that I play a lot without logging in.)
2. Having upgraded healing gems on the field can make it possible to match them with another upgraded color, which is useful for everyone.
3. Sometimes, especially in WB, eliminating a few upgraded healing gems could be enough to survive for another round - and in WB the key to win a level is surviving for enough rounds.
4. Until you change the abilities, the Adored Ones have no abilities without healing gems on the field.