Are those the same characters?

Hawk - He has no problem with losing to Kenny in the Qualifier Sekai Taikai match (it's a very important match). Hawk has to complain about Robby's FIRST loss. I would understand this Hawk's frustrated comment if Robby lost two or three times.

Demetri - He is the one to decide to drop the Robby-Hawk "asshole" argument and tell them to focus on serious issues. Demetri spent time arguing with Kenny instead of focusing on serious issues in the Miyagi-Do team.

Robby - Robby had no problem dumping Tory and fought well in the apartment against Miguel. When Tory says "pause," Robbie suddenly becomes a bad fighter against nobodies.

Seriously, Writers try to make us believe those are the same character.