russians?
they are different than other breeds.
just my thoughts beeboy on these 2-3 swarm cells in these 2 russian hives........my thought is they became congested, and by adding extra space above would most likely have made them happy. putting an additional deep(or medium) on may have helped rather than splitting up in nucs. or did you add extra room above? you, okay, your friend.....

would have had 2 very strong colonies if good flows continue.
seeing 2 to 3 cells in a russian hive from a nuc developed from this spring would not concern me, this would tell me they became very congested, ran out of room and/or the queens were older. how old were the queens? first year, add more space, second year, swarm cells in nucs or other divides.
russians like to build cells of all sorts and they will be prevalent all season long. sort of 'just in case' cells. when the russian queens take off, they bust, so one needs to be well ahead of them. give them room, well before they need it, whether it's laying space or honey storage space.
also, i do not cull cells in my russian hives, (you will be wasting your time if you do, they just build them again), or they wind up queenless. they are fussy about their queens. in spring, divides of some sort are made, and i do like to utilize swarm cells for nucs.
i would feed these 2 nucs beeboy, did you shake extra bees in? i will be curious about the queens in these nucs......and hope you post back an update!
as far as your friend, (with russians)......
get a veil and wear it
use a smoker when necessary........
they tend to be kinda fussy about other things............
