As an Alina fan I can say this is nuts, the claim they are "being passed technically" is a mere fanfiction. Just compare the scores. There are still very little cases of scores that surpass Alina's top performances for instance. Some Liza fans are in cloud No. 9 of her current scoring but the truth is Alina reached higher and without 3A. If such skater as Liza is competitive, Alina would be too with ease. She wasn't "passed", Alina isn't sitting in the corner crying "I want to compete so madly but I can't because of those younger skaters." It's not a forced decision, a free decision that did not appear "under circumstances". Alina was considering hiatus for a long time, in fact just after the olympic season already. She does what she wants and we fans should understand that skaters can have their own desires.
Similar things could be said about Evgenia, the reasons may not be the same but they both would be currently out of comeptitions even if there were no Sasha, Aliona, Anna, Kamila etc. The quads and all that are not the reason why they are not competing and the crusade against "too young quadsters" is just silly.