They added wound because people were complaining about the power and utility of healing being greater than it had any reason to be. They tweaked Alani because her performance, especially in her role as a controller, was greater than it should have been and because certain helices were viewed as being obvious choices.
Personally, the few nerfs she received, I fully understand because Geyser is one of the best support/control abilities in the game (knock someone up, freeze them in place for a second or two, and make them take more damage) and the increased Osmosis stack generation rendered any other helix option at that level irrelevant, regardless of how little it actually affected real performance (oh noes, I need to attack for another second before having my heal fully charged again! it only affects anything if you’re chain spamming heals as soon as you get them charged up, which is an unrealistic and generally stupid way to play because she’s a burst healer).
On the other hand, they brought her Torrent damage way up and made her significantly more mobile (both by increasing sprint speed and making the 30% move speed at max Osmosis stacks more viable). Ever since her (once again, understandable) skill damage nerf, her damage has been loaded on her basic attack (which is a very important part of her play as a whole because her healing, and, with a certain helix choice, her skill use, are enabled by her use of said basic attack) which means that augmenting her basic attack is a significant boon, moreso than on other characters because she’s an aggressive healer rather than a passive one like Miko.
Stop whinging and overreacting as if she were suddenly made useless; it’s just like all of the people whinging and constantly screaming about Galilea being overpowered (Gal is squishy as ■■■■ and remarkably easy to counter if you’re not a “take head and apply repeatedly to character’s face” type). Alani is doing perfectly well and is still a top tier pick even after receiving her numerous nerfs (once again, she totally deserved them); her playstyle is being tweaked a bit so, if you still insist on playing the exact same way you always have, you’re going to have a bad time, but that’s true of pretty much any set of nerfs/changes.