Just looking at procyclingstats, Pogacar has 45 race days this year. Last year he had 61 race days, so looking at his remaining schedule he's going to be short by about 8 race days versus his 2021 season. The lack of Itzulia in April being the obvious difference.
I still think there was space there to fit another GT in his 2022 season. Also, UAE will absolutely want the Tour de France next year so he won't do the Giro 2023 either.
I think for people like me who prefer Grand Tour champions to race in GT's rather than focus on classics & monuments, this is disappointing. It could have been a fun battle versus Hindley, Carapaz & Evenepoel.