Probably no one had threatened the Lava Pristine Salamanders so openly before, let alone doing that and not being attacked straight away.
"Kill!"
"Fuck the fix, just kill him!"
"I don't care anymore. If he doesn't die here today, I will just kill myself!"
Curses and more curses once again rained down. Since they couldn't guarantee the safety of the method, they might as well just kill him and make sure his ability can't be used by other races... or so most of the Salamanders at Stage Eight wanted.
However, what about Zymrug and the other Transition Realm Salamanders? Would they truly just kill Rean? Since Rean knew about the terrible record of the Salamanders in the Divine Werdlem Stone competition, how could the Salamanders themselves not know?