To answer the question in your Title, I've participated in every Beta since the Alpha, and I see no reason not to do the same for this one. I sincerely doubt that Frontier's QA team has a testing rig with my particular combination of hardware and software, so it's up to me to ensure that everything's running smoothly in the areas I care about, and usually branch out into areas out of my comfort zone.
Hopefully, this will also help other players also have a pleasant experience when the patch goes live... though I sincerely doubt it. Frontier's sales and marketing teams seem to be driving the bus, not the development team, so it'll get pushed out as fast as possible again, and then the necessary fixes will get applied.