Okay....
A stat you don't like because it often refutes points you make and yet pretty much every NFL stat junkie uses them. The NFL literally tracks this data through the use of technology, so I don't know why you fail to accept it.
The NFL isn't always so cut and dry.
Because he was playing behind Daron Payne and Jonathan Allen, two players that would have parked Zach Allen on the bench. It's funny watching you throw out numbers without any context to try and make a point. Maybe if Ioannidis starts 34 times he gets 11.5 sacks too? That wouldn't be a completely unreasonable view based on the rest of his career.
Clearly on the decline...or clearly playing behind Pro Bowl players...
The last time he was a full-time starter in 2019, he posted pretty much DOUBLE the numbers of Zach Allen's best season.