Agree with Capt Nasty: this is not a "brick" situation; it's a temporary reversible condition.
Cliff and Team likely took the beta down due to all the negative comments. Easier to do that, than listen to all the complaints.
Forcing them to take it down really defeats the purpose of releasing a beta, so the software/firmware can be trial-used in thousands of diverse operating systems and setups. Sure, sometimes a beta doesn't work for everyone...if you're one of those folks, simply roll back, report your findings, and continue playing. The whole point of "beta" releases is to try them out, see where we're at with the different users, and repair the misc. bugs that pop up. It is CLEARLY labeled a beta version; if you don't wish to participate, which could have good or bad consequences, then please don't. No biggie. Just wait for the final release, and hopefully, by then, most of the bugs will have been solved, all will be wonderful.
It should be OUR responsibility, if we load a beta, to understand that there may be a greater risk that it will have a few bugs. If you come across these, report them, and either keep using that version, or roll back.
I for one, am grateful for the crew for sharing their efforts, and letting us participate in "wish" lists, and beta early releases. Not many companies are so open and transparent in what they're offering.
I'm also thankful for all the beta-testers who installed the software, and reported concerns, if any. That's what it's all about, and helps us get a more useful end-product.