I'm not really sure what you're saying here. My point was that the market for talent is not particularly competitive, with the opinion of interviewing.io given as an illustration of that.
You seem to be confirming that the market for talent isn't competitive - in your view, companies have more applications than they want.
Or maybe you're going for a different point? For the suggestion, my experience is that companies won't consider direct applications either, and in the general case do not ever even list junior positions. (An observation which is not unique to me; see e.g. https://marginalrevolution.com/marginalrevolution/2022/07/fr... )
If you're worried that I'm implicitly slamming interviewing.io for claiming to do something very different than what they actually do, I don't think you've rebutted that - "if people perform well in our interviews, we will introduce them to top-tier companies as long as we think their resume looks good" isn't particularly similar to "if people perform well in our interviews, we will introduce them to top-tier companies, regardless of how they look on paper".