Although I'm not sure it's wise for Alina to work at a quad now (she has room for improvement in other areas of her skating
Well, she would not focus just on one thing, fact that she is training quad flip (and manybe other quads as for some of the older Daniil's words) does not mean she doesn't work on other things. If she is 2x1.5 hour on the ice daily, let's say that 30 minutes of it she is training quads. But one should remember. Alina is great, but has some disadvantage against skaters with quads or 3A - she has to be perfect to match them, all elements in +2 and higher as there is no reserve. And she is capable of it as she has done perfect programs many times even during this season, but it is much harder psychologically for her to know that all her elements have to be perfect. With some quad(s), she could be in fact more relaxed, it could give her some backup points.