Contador absolutely smashing the Giro in 2011, but being halfway mediocre for his standard later in France. That was also on a way harder route though and against tougher competition which actually could compete in the mountain: Scarponi, Antón, Rujano and Nibali. In 2015, he was pressured more in the Giro by Astana especially, and was actually not the strongest climber (that was Mikel Landa). That was a tell-tell that he was not gonna win the Tour, and he kinda looked like a shadow of his former self.
Pog is obviously better than Contador ever was, even on his peak in say 2009 or 2011, but Contador also had to go against tougher competition on routes which also required to dig way deeper than Pog was in 2024. That should be taken into consideration as well, but still, Contador was way off the mark when he tried the double in his second GT, and Pog got better in his second GT.