That's a true statement.
Wentz at his best was better then anything Dak has done so far though.
This is an interesting take.. so I looked it up..
Longest winning streak. Dak 11.. Wentz 9
Longest losing streak Dak 3 Wentz 5
Okay those are team stats.. let's focus on their own play..
Games with "perfect passer rating" Dak 1 Wentz 0
Games with passer rating above 100 Dak 32 Wentz 21.
Games with 3 or more TDs Dak 17, Wentz 10
Games above 70% completions Dak 22 Wentz 13 ..
Games below 60% completions Dak 14 Wentz 26
Games with 2 or more INTs Dak 11 Wentz 13
5 best passing games by rating..
Dak 159.3 148.3 141.8 141.7 137.1
Wentz 128.3 126.3 125.9 122.1 121.0
So Wentz's best game ever would not crack Dak's top 5. In fact I took a peek and it might not crack Dak's top 10.
Try as I might I cannot find any objective measure that says Wentz has ever been better than Dak. He basically had one nice stretch in 2017 and then another 4 game stretch in 2019 where he has been good.. For the rest of his career he has been pretty spare. If you find one please post it.