Opinions on such things can change and certainly have over the years. In this very same press conference from before the Olympics she said she wasn't interested in training any foreign skaters at all and mentions Elizabeth Tursynbaeva by name, as someone she isn't interested in training full time. Needless to say, that has changed. Eteri was also willing to accept Shoma this year, though it didn't work out. And she's actually had Chinese skaters come to her summer camp for the last two seasons. Of course Eteri wouldn't ditch her own skaters in favour of the Chinese fed, but she's definitely not as categorically opposed to training non-Russian skaters as she used to be.
I don't know about chinese skaters at summer camp, I know about philippine skaters (and Dudakov participated in Manila once or twice). But it is different with summer camp and with full time training. Summer camp can be useful in two ways. Also, with Shoma there was never any serious talk about Eteri being his full time coach from any side, despite some previous rumours. With Lilbet, Lilbet herself said she had to persuade Eteri that she really desire for it to accept her back. Specific cases are not general rule.