Arreola is well past his best by date. However, you are correct in that even Arreola might beat tar out of the Wilder Windmill.
If this were the Arreola of 4-5 years ago i'd be excited. The Nightmare would be Nightmare matchup for Wilder when at his best.
I think Arreola haso a punchers chance if he is in shape. Wilder has a lot of holes in his game but has not fought anyone that can exploit his weaknesses.
Blame Povetkin and his big ****en LL Cool J Boombox brain for why the fight didn't come off. Meldoniuuuuuuuuuuuuuuuuuuuuuuuuuuum Squaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaad!!!
When has he ever been in shape? In his last fight he came in at one of his lowest weights and was dropped and was lucky to not lose the decision. Arreola is so shot right now I'm not even sure he'd beat the Seth Mithell he KO'ed in 2013. Arreola is 35 but an old 35, years of getting hit too much, abusing his body by ballooning up in weight and smoking weed have taken it's toll. In all honesty this is Wilder's worst defence so far. Even Molina, who was KO'ed by Arreola could beat Arreola now. Post Stiverne Arreola is not the same fighter he was.
Arreola is the 9th best boxer on the planet! Proof: http://wbcboxing.com/wbceng/index.php/ratings?layout=edit&id=139 Resume: http://boxrec.com/boxer/212248