First off, simply an amazing accomplishment, and "redemption" after a rough time at Western States.
Jones expected the record to go sub-6 "within 5 years" from 2011. It's pretty amazing that nothing happened for three years and then all the time went in one big bite. Grabbing the R2R record on the way (in the "hard" direction) is just astounding.
The communications change is also funny. Krar popped into FKT something like two days after the record with "yep, did it, details to follow." This time there were tweets from the North Rim "Walmsley beat the R2R record on his way to R2R2R." Props to his team for stating clearly it was provisional/unofficial at the time.