I don't understand the theory behind the theory. That it will go dormant after blooming if the bloom is not removed? I haven't seen that happen, had the same ones for about 5 yrs at the other house. They had tons of lovely leaves. They always came back, with new pups around the edges. I'd be nervous if there's nothing showing yet where you are.
We shall observe my blooming plant together... FWIW. :+)