Reznor released 5 movie scores last year. He's got 2 Oscars, 1 Emmy, 4 Grammys, and 3 Golden Globes the latest one this year. Multiple nominations in all those categories. He's far from done.
I don't think this is pertinent to their point at all. They were just referencing the quality of one of the scores Reznor has done. Reznor has continued to score movies nearly every year since. I'd agree with them that Reznor's career heyday probably is now. He's writing scores for multiple productions a year while still playing stadiums with NIN.
He was nominated in 2020 for an Academy Award in Best Original Score for both Mank and Soul, winning for Soul, plus a slew of other award ceremonies that season. Challengers in 2024 also had nominations in a bunch of awards.
Apologies for the hijack. RIP Brian.