given the vagaries of mastering, why would you feel that?
I'm glad you asked! I happen to have the Kiss Destroyer box set with the Atmos remix by Steven Wilson. Even with Steven Wilson working his magic on the remix, the bass if flat, has no punch and is not up to the level as you would expect to hear in modern recordings. The bass pretty much sounds the same as it always has since it's original release from 1976. If there was something Seven Wilson could do to get those bass levels higher and to allow some punch in the bass notes, I'm sure he would have done so. So what we are left with is a lackluster low end on the album (including Steven Wilson's recent Atmos remix) assumingly because that's simply the way it was originally captured and no more could be retrieved from those master tapes.
Of course bass levels can be increased independently from other frequencies but in the case of Kiss Destroyer it may not have sounded good since it really does lack definition and punch so a decision could have been made to just leave it the same.
Also, if you listen to older rock recordings from the 60s and into the mid 70s or so, many of them really don't have deep punchy bass. Now of course there are exceptions such as Dark Side of the Moon (1973) and some others, but I don't think Kiss was getting the royal treatment (not much care was taken...or being overly careful for a final LP release) at the time their recordings were being created.