Yes! I have been thinking about this a lot as well. Having hosted lots of IndieWeb events on my site (including HWC Baltimore and some of my improv shows), I increasingly feel like those event pages belong somewhere on the web associated with those communities.
I will of course keep my own RSVPs, photos, and recap write-ups on my site, but would gladly syndicate them to the community event page. If the event page supports IndieWeb building blocks like microformats2 and webmention, I wouldn’t even have to do anything special for them to show up there!