The thing for me is that Lesnar has been built up so far, breaking The Undertaker's WM streak of over two decades, and crushing the top guy of the past decade, Cena on multiple occasions.
So I'm not buying that Roman Reigns, who has only had like 1 PPV match since becoming a singles wrestler and just came back from injury, is going to defeat Lesnar with a punch and a tackle.
To be fair, I don't really buy anyone beating Lesnar cleanly at this point, so having a triple threat gives them an out there. Reigns is not going to get over with Bryan and Lesnar in the same ring though.
Jaffa, I agree. I don't want Bryan shoehorned in either, and while its good that they do listen to fans at some point, they go about it wrong and it doesn't benefit anyone.