You are absolutely correct, simply not discounting the valid arguments that the cut is hard, 65 has a drastically short peak every 2-3 years before nearly full turnover (similar to the 1500 in track), and 26 is, relatively speaking, "old" for 65. Here is the complete history of champions over the age of 25 since the shift to 66kg in 2002 + 65kg in 2014.
Musukaev (30) 2023
Yonemitsu (turned 26 just six days prior to the date of competition) 2012
Sushil Kumar (27) 2010
Bill Zadick (33) 2006
Elbrus Tedeyev (30) 2004, 28 (2022). Side note that he was a 4x world/oly champ and 6x total medals. Outlier