SEO is looking at your WordPress pages set up. As far as it is concerned, you have nothing in your home page. Customizr compiles your home page from the slider you selected, the featured pages you selected and the text in your selected "front" page and delivers them all to anyone who visits ... including Google/other search engines. The content is being passed to users/Google/other search engines under the counter as it were.
So just ignore SEO in this particular case. It doesn't know the full story. Just make sure you follow its good-practice recommendations and it will all work fine.
If you want proof, google dario alfonsi. I have a static front page, where WordPress SEO gives me "poor" rating, but the two-sentence meta text that I gave to it inside my "home" page is picked up fine by Google. (With an additional nuance in my case because I have 2 separate domains; so you'll see the same effect in Italian too.)