Era ain't crumbling from that. It's the equivalent of Rockbandgaf or NBAgaf getting purged and starting their own site.
Era would need a much bigger spark than that to crumble. Either that or a death by 1000 cuts scenario with this PC one being a contributor to that, which I could see happening at some point absent any massive controversy.
Most likely scenario is probably just leaning further and further into their bubble until not only the gaming community at large is fed up with them, but the actual industry people are as well. Could happen next year or it could happen 6 years from now, but Era's influence ain't lasting half as long as Gaf's did.