Technically speaking... Could Bayliss have DQed Johnson for refusing to fight? (after sufficient warnings of course) He should have at least been warned imo.
Yes, he could have. He would have needed to have warned Johnson, after so many time he could have been disqualified for not fighting.
Seems like what happened when Paulie fouugt Hatton. Ref would break them appart and as soon as Hatton approached him Paule would dive at Hatton and begin hugging.