The home page is designed (in my opinion) to showcase the most popular content it has in store. By nullifying that thrill of getting "pop-reel", you're virtually eliminating any drive the userbase has to upload content.

Moreover, a lot of users' analytics thrive off of pop-reel. By splitting them into a "section-reel" (as per what you're describing), you're providing so much extraneous information for users that all content gets unbothered. Also, this requires users to start fitting their content to a particular dynamic. For skin creators, you're destroying most of their creativity as "teen-skins" are rampant and the most popular form of skin on the site. For project creators, you're alienating terraformers and small-scale builders because making these things are niche. What I'm trying to say is that you're creating a "top 1%" that not everyone wants to conform to. If "skyscraper" is a trending topic almost every day, I'm not going to keep uploading terrain. I'll lose views, and I'm certainly not going to do a 180 and build again.

Now, from a viewer standpoint, when I look at the pop-reel submissions, it's from their thumbnail, then their section identification (skins, projects, packs, etc.), then their creator. By saying, "Hey! Look through this subsection of a section to find interesting content," you're making me less inclined to click on anything. Don't get me wrong, I love finding content, but I prefer efficiency to find that content. I don't want to look through 50 spaceship projects to find something worth rendering.

All in all, implementing this would do far more harm than good for content creators across Planet Minecraft. Your intentions are good, but I fail to agree with the aftermath.