No, they are not.
They are both horrible, Bitetto is just as bad. They are not NHL players in any facet of their games. Maybe Beaulieu is a 7th defensemen.
Niku has not been a good NHL player so far, granted. He has also been played with a mismash of junk for the most part and only in small samples, he has never been given a chance to play with a good partner for a solid stretch of time. He has also only played on teams that have absolutely horrid advanced stats so he has not been able to drag them up (admittedly he has made them worse though). To continue to play junk like Dahlstrom/Bitetto/Sbisa/Beaulieu over him, when we know they are trash and not helping us win games, instead of giving him a chance to learn on the job and get better, because he has that potential, is some of the worst logic I have seen a NHL coach use.