Some top tire players, mainly guitar players though, who believe in tonewood, has basswood as their preferred body wood for their instruments, as far as I recall something about exquisitely balanced tone and sweet mids.
I don't really see the problem, it's not like it will get dented out of the ordinary if you just take take reasonably care, and it is definitely not like it will not like a bass with basswood body won't easily outlive you, despite of it taking less for it to get dinged.
Also I am of the school that says, so what if it gets a few dings, it's a tool that is meant to create music on, not fine visual art or design meant to be exhibited, as long as it can fulfill it's main functionality all if good as far as I am concerned, and one have to either do a serious effort or be unreasonably unlucky to ding it to such a degree than it can't anymore, and to that extend basses made of harder wood species probably would have been ruined too anyway.
Finally light guitars and basses seems to have gotten extremely popular in recent years, a lot of people, for some odd reason that is beyond me, even seems to favor light weight over about just about any other aspect of an instrument, so in with that in mind it's perfectly natural market mechanics that the manufactures try to accommodate that trend and exploit it as much as they can by using lighter building materials.
I personally wouldn't hesitate a second to buy a bass that I liked just because it was made out of basswood.
Yes, basswood a relatively soft wood compared to mist other wood species traditionally used for bass and guitar crafting, and it is also a cheaper wood, but by no means is it a lesser wood.