There is surely a way to determine if one app is substantially similar to a previously banned app, eg. by fuzzy comparing the binary, or running it and comparing screenshots.
However forced ranking, deep linking, and previous ban evasion are all real concerns for Google's reputation as a corporate friendly gatekeeper.
Just because to you it's "just another bejeweled clone" doesn't make it so. A layperson would probably think that HN is "just another reddit", and that's not any more valid.
Luckily (or unluckily depending on which side you are on) we already have laws that define this for us. Trademark, copyright, and patents. For better or for worse, that's legally what we have to work with.