They don't have a history of making stuff up. Just because one group did doesn't automatically mean everyone else is. The probability that something is made up doesn't change just because somebody previously did or did not make something up.
Nope, but I'm leaning toward the side of caution. If the super-conductor is real it will be shown as such within a few weeks and will be revolutionary, and if not I'll be less disappointed if I've steeled myself to the possibility.