Beating good teams, losing to bad teams.

Due to work, I've missed the last ten or twelve Kings games, and haven't been able to assess what the problem is other than the obvious growing pains and rookie/vet grooming.

We've beat teams like Vegas and st. Louis, went on a long winning streak this year, so what gives?

I'd like to hear your interpretations and opinions--was winning a fluke? Was losing inevitable? Simply a matter of overachieving and coming back to Earth? Thanks.