I don't agree tbh. While your average pt era Jedi Knight is probably slighty weaker due to 1000 years of peace and lack of serious threats in that period we have some of the strongest force users the galaxy has ever known. Jedi such as Saeese Tiin, Agen Kolar and Sora Bulq are already considered some of the finest Jedi the order has ever produced,however their skill pales in comparison to that of Obi Wan Kenobi, Count Dooku, Canon Quinlan Vos ( but his EU self is no slouch), Ahsoka, Maul and Windu. These guys are absolute beasts,but PT era has even produced force users Who could stomp these dudes as well, such as Sidious and Yoda ( and Plagueis if we consider him part of this era). We have also a bunch of other sith/jedi who are fodder to these guys but are still very strong, such as A'Sharad Hett,Ventress,Savage, An'ya Kuro, Nikkos Tyris, Talzin, Neeja, Drallig and many others. So yes, maybe your average jedi sucks, but this era also produced a lot of elite force users