It's definitely possible, but I'm more inclined to believe that Lora's inconsistency as a ring general and tendancy to admire his work leads to dropping rounds in the early doors to Jiro. Watanabe would definitely find Lora's body, and I think that and Lora's bad weight cuts lead to him fading late. Over 15, I think this leads to him losing.
Revisting this thread, I would pick Watanabe to beat Canizales, Inoue, and Sahaprom. Not too sure about Canizales and Inoue, but I think Watanabe was a level above Sahaprom.