It's true there hasn't been too many (decent) indie games for the Amiga in the last few years. But many of us old school Amiga users had a career to attend to during the last 20 years and now that we're +-40 it seems there's again more time to put into the old miggy.
Now, if I was ever to develop anything for Amiga, I'd do it primarily for my own fun, but I can't deny it would be still good to know if some others would benefit from it as well. A well thought out Games portal could be a a good indication there some people still out there interested in downloading the thing.
In the best scenario it could even be a motivation for some of us to start the development we've postponed in the past.