It seems strange to me you'd be advocating for a mundane Shmup that I could play on my MAME emulator if you're fighting game has "lots of innovation." Obviously you recognize that every genre has tons of room for improvement - so why keep them the same? Even if it IS fun, I can get the same experience somewhere else. This guy wasted the opportunity by not really doing anything new.
For example, there is another shmup on that same exact website that actually takes steps at innovation by giving you player-guided weapons and bosses that complement them. Bam. That wasn't hard. And I bet that game would be much more compelling to play.