I can't say that I completely agree with this. Quality will always be an important factor on Steemit (in my opinion) and I think it would be a mistake to throw it to the wayside. There will always be room for both quality and non-quality post on the platform therefore neither should be discouraged. Users will upvote and reward the content that they like regardless of what "category" it falls under.
Other Dapps that exist on the Steem blockchain now and those that will be built in the future will choose to sacrifice quality, which will provide the necessary balance on the Steem blockchain. Each providing value to the Steem token some with more of a focus on quality (steemit) and others on mass appeal.
That is the point.
Your followers/readers depend on the quality of what you post. (Rewards are another story)
We Just dont have to "crusade" about quality content. (Btw, steemit is not attractive to professional content creators)