Is it wrong to try and break a Fastest Known Time on a trail, run a mile under 4 minutes or break the world record in the mile, be the first to hike a long route (ala Skukra), climb a new route on a Big mountain, climb a new route on a Big rock, or be the youngest person to complete the Triple Crown of long hikes?
It is this competitive nature in people that often leads to breaking new barriers. It shows what can be done, when most say it cannot.
Speed hikes may not be of interest to the majority of members of BPL (myself included), just as doing the PCT with a SUL kit is probably not of interest to most here, or even doing the entire PCT in 6 months is not going to be done by most here. Should we disparage PCT hikers who take a break once a week and go into a town or even for taking several months out of life to hike it?
These guys hiked the entire JMT (or maybe ran part of it). Did they miss something that someone who hikes it in 3 weeks will experience? I don't know, or even care. Everyone gets what they want out of their own hikes.
Speed hikes are of little interest to me, but it is not my place to pass judgement on those who want to do them. But it is backpacking -- they carried a pack with all their food and gear, slept in the wilderness, and got home safely. I do each of these 3 things on all my trips. They just covered more miles per hour than I do.