Why would they take on foreigners from a foreign country that is not even a part of the EU. Why>?
One source I've read suggests that most/all of these prospective students have the 'karta Polaka' (I don't know how legitimately...)
Also this is maybe part of a long term strategy going back to the 1990s of successive Polish governments... wooing (for lack of a better word) Ukrainians and Belarusians.
Young, smart Belarusians are surely eager to escape the pile o' crap known as Lukashenka and the more who look to Poland (rather than Russia) the better.
I'm starting to notice more Ukrainians again on public transport or walking around as the "pandemic" slowly winds down (was asked for directions yesterday by an obvious new arrival).
Biden is effecting objectively pro-Putin policies which are not good for Ukraine and which ensure that Russian aggression against Ukraine will continue/escalate which means Poland will still be an attractive destination.
So, in a way a bunch of students from these two countries (especially) could help increase Poland's soft power in the region ('could' being the operative word).