those are probably a better thing to use against yukkuri, specially if you go with pepper spray pellets instead of the normal bb's.
Though here it seems it was a futile attemp at doing a Piccoro type of training, aside of forgeting to shout "DOOOOOOOOOOOOOOOOOOOODGE", Anon forgot that this are yukkuris which means 70% chance of just freezing on spot if they are scared, more so for Ko's like this bunch.
Silly Anons...
YU...1 minute laterOk, startWell, do your best dodging