Yhea, make sense but... Terrans and Protoss working for an Inested Terran... A BIT AFTER KERRIGAN KILLED FENIX, one of the most honorable and known Protoss warriors of history AND NEARLY DESTROYED THE DOMINION AND KILLED HIS GENERAL? I highly doubt normally a Terran or a Protoss would say "yhea, working for this Infested Terran is a good idea" in normal circumstances, IMAGINE AFTER WHAT HAPPENED IN BW, WHERE AN INFESTED TERRAN LITERALLY KILLED NEARLY EVERYONE THAT WORKED FOR HER.
Higly doubt is canon. Infested Stukov with mercenary forces, and some of this mercenaries are Terrans and Protoss that work for an Infested Terrans, that already this sounds pretty weird, and... Protoss mercenaries? That actually exist? And if it does, they work for what? But the thing that make me laught more is... MERCENARY ZERG! Take everything you know about Zerg, and throw out from the windows! How Mercenary Zerg can be even be considered something canon? Is terribly dumb