That is actually entirely not what they were saying at the time of the vote and its aftermath. At all.
Go back and read the threads. On this forum, or on mastodon, or on the vote. It was pretty vociferously ... shall we say ... "principled"
It was never stated to be about "low quality" but about use in "large part" or "majority", and when pressed people refused to define what that meant, and in fact got angry and defensive and said things like "you'll know if you've crossed the line" and "stop trying to force consent" and similar pearls of wisdom.
The post-facto rationalization did in fact leave them room to judge "quality" on a purely subjective basis. I didn't stick around to find out how that would shake out.
Do you expect it to be enforced by a machine? Why would you need a precise definition of "majority"?