I wouldn't mind if he blessed a test. Because, if he's been "clueful enough to not bless any particular test" so far, he's likely to only bless tests that meet a high level of reliability.
It's sort of like when I'm playing Euchre (or any other partner/trick based card game) - I may have a bad hand, but I want my partner to bid something. Not because I'll support them, but because that means they have a good hand. I have no idea what a good test would be, but if Larry said it was a good test, maybe that means it'll be a reliable test of someone's applicability for perl-related work.
That said, given what is attributed to Larry in perlstyle, I can't imagine him saying that any test was definitive enough to be acceptable. ;-)