> Why do it only show a few subdomains for .statuspage.io? I would have expected at least 10K or so. https://www.merklemap.com/search?query=*.statuspage.io&page=...

Because they have a wildcard for *.statuspage.io, which they are probably hosting their pages on.

> Is my query wrong or are you just showing less results intentionally if you’re not paying?

No, results are the same but not sorted.