Um, no. This isn't about block size exhaustion. According to the article (I didn't do any research of my own to corroborate) proponents of various sides are throwing real DDoS attacks at bitcoin nodes and/or web content friendly to the "others".
Yes, I am running three Bitcoin Classic node and all three have been attacked in the last 24 hours. The attack seems to be only uni-directional at this point, Core trying to shut down Classic nodes.