I think you're missing the point again. There are some (not ALL) professional schools out there that "water down" standards for getting into their programs, meaning that some candidates (not ALL) candidates that should not hold a PsyD or PhD in clinical psychology will be able to sleepwalk their way through school to achieve that PsyD or PhD.
I like to compare professional schools vs. traditional PsyD and PhD programs with D1 vs. D2/D3 athletics.
No one (at least no one in their right mind) would argue that D2/D3 athletics are of overall better quality than D1 athletics. However, the very top (i.e. "elite") athletes in D2/D3 more often than not could easily compete in the D1 ranks, but they chose D2/D3 for different reasons (proximity to home, quality of school, etc., etc.). Unlike D1 athletics though, there is no "depth" in terms of talent for D2/D3 athletics. One can skim the top off the top 10% (very arbitrary number) of D2/D3 athletes, and the remaining 90% don't have a chance competing with the "big dogs" in D1.
This roughly relates to professional schools (D2/D3) with traditional PsyD/PhD programs (D1). As Ollie123, Jon Snow, T4C and others have said, they are acknowledging that there are many quality individuals that choose the professional school route for whatever reason and turn out to be successful clinicians, researchers, etc. However, there are many individuals that go to these professional schools because they can't cut it at a traditional PsyD/PhD program. Is it their fault that they're allowed to get into a professional school to pursue what I assume is their dream to be a doctor in clinical psychology? No, it isn't. The problem lies with the fact that the bar is set SO low by some of these professional schools that almost any joe schmoe could come in off the street and pick up their degree when they should be stopped at the door.
I realize that people aren't arguing getting rid of D2/D3 athletics, that D2/D3 athletics are run poorly, or that they were set-up for those who couldn't compete in D1. But I think it shares a few similarities.
Clear as MUD? Good!