Yeah, because musicians are all about being practical. Somebody would have loved that combo as is, especially being in such nice condition. Actually it would probably make an excellent vintage keys amp with some upgraded speakers (which would be totally returnable to stock later on, rather than cannibalizing and selling off the pieces separately). Or a guitar amp for a guy that plays in a loud band on big stages, and needs a really clean sound sometimes, and then uses lots of pedals at other times (ie shoegaze, postrock, etc...).
Hell, my main guitar amp is 120w and 2 12s, and it's not impractical at all. Actually sometimes I wouldn't mind an extra 60w to get that pristine clean sound a little further up the volume dial at particularly loud shows. That amp I'm considering converting to a keyboard amp, but then again it's only 13 years old, and is a modern SS amp that there are probably 10s or 100s of thousands of out there in the world, going back over a nearly 40 year production run. So it wouldn't be the same as taking what is basically a time capsule amp and just discarding half of it as junk basically (unless somehow the cab and speakers find their way to the owner of a lonely ST chassis).
It just kind of bugs me that bass players are SOOOOO quick to destroy the historical value of anything without so much as a shoulder shrug. They want ONE thing, but they buy something completely different and then try to mold what they bought into what they want, instead of just getting what they want in the first place (in this case a tube bass head).