It is, as well as NVC. If we can find a way to both avert this issue, AND not implement centralized checkpointing (which I also don't agree with), it would be a great way
to distinguish YAC even more.  Of course Sunny King is pretty fucking brilliant and probably pondered this forever, so that may still be the only way 

I'm trying to stay out of this debate (another way to avoid centralized "checkpointing"  ) but we really need to do something soon.  I think a Feb 1st hard fork date, as mentioned before would be sufficient though.