Sure. But this wasn't just one bad skate. It was two at this event. And let's not forget that they didn't skate particularly well at their other GP this fall. This is consistent problem with both of them, though the FP in Sapporo was definitely the worst so far.
The Knierims have made a yo-yo of my heart. I chose to hitch my wagon to their career after my other heartbreaks over McLaughlin / Brubaker and Yankowskas / Coughlin.
I watched them get top 10 (9th) at their first Sr. Worlds in 2013, after only being together over a year.
Then I watched them fail to make the Sochi team, losing to teams like Zhang/Bartholomay at Nationals. Then, they came back in 2015 to finish 7th at Worlds.
They started the 2015-16 season marvelously, won GP medals and made the GPF, landed the SBS 3T at 2016 4CCs. I thought 'This is finally it!' but then they completely tanked at 2016 Worlds.
Immediately thereafter, they withdrew from injury for most of 2017 because of her horrible illness, but were valiant at both 2017 4CCs and Worlds, finishing 10th. Chris's skating had improved w/ that alone time I suppose.
They finished 15th(?) at Pyeongcheng w/ some pretty mediocre skating
Then his wrist injury derailed them at 2019 Nationals and they were out for a while. Afterwards, they put up a very big score at Nebelhorn this season and almost matched it at SC. I thought they would meet it at NHK and held hope with the time off between comps that they might get more mileage on their programs and improve on them. Alas, no. They finished last in the LP.
They have a big history of up and down. They were more than once on the cusp, but always fell short of moving into that serious challenger status on the World stage. I don't honestly know what holds them back. One can point to injuries, but it always happens when they are healthy, too.
Big guys in Pairs can execute triples. Look at He-Zhang and Bruno Massot. So, I'm not sure that Chris's physicality holds him back.
Looking forward, as I posted above, they need to redeem themselves at GS. The USFSA is looking at BOW now. If D/F do really well at Nationals and C/L do better than them at GS (which is a possibility). They probably will not make the Worlds team. C/J are on the rise as well.
ETA - I guess any upside to US pairs is that there are finally other US teams that can compete, be selected and legitimately shoot for a top 10 at Worlds this year if Knierims can't pull it together