Well there have been significant improvement to transaction propagation and output selection in the core software that will likely be mitigating against these attacks in real time. I personally do not think that this niche tech-art is going to threaten the current state of the network especially since it is highly ineffecient, is likely a zero sum profit game, requires centralized systems to operate, and seems to carry little to no social weight amongst organic bitcoin users.

Things like this are kind-of annoying but I think the network has succeeded in preventing these types of issues from becoming a major issue.