Regarding Lucky vs. Tantrum, I'm 100% convinced that Tantrum would have found a way to wiggle off of where it was stuck by firing its weapon and having the minibot nudge it a bit. I think Lucky knew that too, so they kept on the attack and tried to get an out of the arena flip to put away the fight early. It looked like a nice show of sportsmanship, but I think it was just Lucky knowing the fight wasn't over yet and staying aggressive.
Ghost Raptor, on the other hand... that was some combination of sportsmanship and them realizing that their fight would have ended up not good enough for TV and been cut if it ended like that. If they really wanted to win that fight, there was no reason for them to help Glitch get unstuck.
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''The cycle of suffering goes on, but the memories of you stay strong...'' https://i.imgur.com/Xyw75SQ.gif