Yea. The movie mooks can crunch concrete and scouts that get thrown into metal terrain leaves dents.Consistent power levels were not really a concern of the Sailor Moon anime. It's particularly obvious in the movies, where as I recall everyone's attacks tend to get massive upgrades in apparent power due to the vastly higher budget and somewhat less use of stock footage.
I think on the whole it's not too inconsistent. Everyone on both sides is superhuman all the time, if they're getting hurt it's still from a magical yoma attack.
Hm, though they do seem more fragile (or at least worried about damage) during filler than plot eps.