icb that big dumb alpha bitch gave him the pill AFTER he fucked him

Although I agree, the whole idea of a heat is that both parties are unable to control themselves. Usually only the coolest of alphas (the chivalrous seme) have the capabilities to take an inhibitor themselves and then save the omegas (perhaps after some kisses but no hanky-panky). Omegaverse's heat is basically a justification for the usual yaoi rape plot.