I built a web page about a year ago, and I registered the site to google search console, and it worked fine.
A few months ago, I noticed that that most of the pages are excluded from the search console, due to the pages are re-directed to nyhoustl.netlify.app.
I changed the sitemap.xml; all netlify.com were replaced with netlify.app. Google now says the sitemap is readable but the url’s are not allowed.
Yeah, you won’t need those rules. We automatically redirect from .com to .app so you’ll get a cyclic issue.
Just to confirm, what are you trying to achieve? Are you trying to add the .netlify.app domain in to your own console? If so, I don’t think this will work. You will be able to add a custom domain though!