I feel bad for both of those women. The anorexia is probably easier to intervene with at least.
People think that, but if you listen to former anorexics who are fully recovered for a long time (and like alcoholics they say "recovering" rather than "recovered"), you find that interventions just make that inner beast angry. The person will comply with treatment, pretend to see the light, "play the game", but as soon as they can get free of treatment, they go back to what they want, starving themselves. They'll tell you it's a kind of split personality, that a rational side of them understands the danger and the degradation of their health, but that inner beast fights it out with the rational creature and wins.
Maturity seems to help. As anorexic women get older the beast starts to settle down and demand less of them.
I was following MerryRose Howley for a while on that subject, staying on the path of anorexia recovery after several years of success, and extra entertaining with her pet bunny Archie. Then came the Covid era and her college shut down. She had to return home to her parents after enjoying an exhilerating time of being on her own with a college apartment for herself and Archie, starring in local theatre productions. Now she has disappeared from YouTube for two years, so I wonder if the bogus Covid boogeyman destroyed yet another life, and she is on the relapse. I may never know.