Yes, sadly. The argument "not good enough" is a fail IMHO, though. If it's bad, improve the algorithm and/or add statements. If it's still bad, THEN add a manual description.
I think the worst possible description is the one that's missing.
Back-of-the-envelope calculation:
* We have ~45 million manual descriptions at the moment on Wikidata
* We have ~18 million items
* We have ~250 languages
That means that, as of this moment, less than 1% of all possible descriptions are filled in. And the quality of these manual descriptions is everyone's best guess; I've seen plenty "disambiguation page" and "category page", EVEN IS THAT IS NOT TRUE. Some crappy bot filled those in. No chance of quickly fixing this.
So, 99% descriptions missing, with little chance of them getting filled in at all (think: small languages), and a rather dubious track record for the ones that are.
It's like letting people drown in the Mediterranean because the tents to house them temporarily are "not good enough". Frustrating, seriously.