T32 and Ks are definitely being mercilessly killed, meaning you won't get a faculty position doing research after PTSP, which is perhaps for the better because you will get killed sooner or later. Maybe it's a good thing to get killed sooner rather than later.
But, as long as you nominally fulfill the requirements of a clinical fellowship, which all PTSPs will, your options after fellowship are generally better/equal to people who did a straight clinical fellowship. For prestige reasons.
Industry for example strongly prefers individuals with MD/PHD->PTSP for various reasons, one being that they know how to interpret data and deal with statisticians, etc.
Private practice may prefer straight clinicians, not because they think your clinical training at PTSP is inferior but because straight clinicians are less likely to leave. If you really want to do PP you always can. I don't think this is a major concern.
In a world where everything is marketing, brands are the only things that are left that matter. So in whether PTSP or not, I would pick whatever you get in that is more prestigious. (Be reasonable, of course, family etc is still #1).