I think this is a good decision!
To me, Public Beta says the core functionality is going to work and is ready for public use, but perhaps not all add-ons are ready and there could be some bugs that the beta testers haven’t yet found. If I have a new site, or a simpler site to build, I’d go for a public beta, no worries. If I have an existing site that hinges on some specific functionality or add-on, I’d test that out before jumping in.
Public Beta says it all!
You said it much better than I did a couple posts ago! Thanks.