it was a dramatic match, good match quality wise, not great.
Also Nadal was mediocre in the first. Match had some choking from Thiem.
Total # of winners was like 122 as per TA, not remotely close to 180
2018 US Open QF: Rafael Nadal vs Dominic Thiem Detailed Stats | Tennis Abstract
matches in this century at the USO better than it on top of my head quality wise: quite clearly:
USO 01 Sampras Agassi
USO 04 Federer agassi
USO 05 Agassi Blake
USO 05 Federer Hewitt
USO 07 fed Roddick
USO 09 fed delpo
USO 11 fed djoko
just the big ones on top of my head
there are other ones arguable: Fed-Djoko USO 08,
Fed-DJoko USO 15, Nadal-Djoko USO 10 etc.