The exact opposite thing is true. If the article is bad, it needs to not be on the site. What's important are reliable articles, not how many articles there are. It's perfectly fine for a topic we know will be more obviously notable in the coming years to stall for an article until a decent one can be written.
This has been the ethos of the project practically since its inception. It's always startling to see people questioning Wikipedia's premises, since it seems pretty clearly to be one of the most successful volunteer projects in the entire history of the Internet.