Bunch of keikis

[iccuwannn]

Hi,
Thank you for reading my post. I am hoping that someone can help me save a group of keikis on a phal. Quick background :
The phal was given to my sister by the hospital during her cancer treatment. Unfortunately we lost her a couple of years ago and as the plant was very special to me and my mum I applied keiki paste when the plant finished flowering in the hope that we could each have a plant. The phal itself wasn't in great shape and showed signs of sunburn and had a broken leaf. It subsequently began developing what I thought was a keiki but which turned out to be a group of five or six which are like conjoined twins.
The mother plant has struggled to recover and to grow the keikis and unfortunately, as the temperature fell this winter, it has started growing a new spike. The spike with the keikis is now dying off and I have no idea what to do.
Should I leave them on the dying spike or cut them off as a group and try to grow them until they are big enough to separate? I'm not a complete orchid novice but not an expert either so any help would be appreciated. I've attached a few pics to show the current state of the plant.
Thanks in advance