“Sucking in your gut by activating the transverse abdominus works like magic to take the pelvis into a neutral tilt position”
No need to consciously cue this, general adaptation from over all training will improve lumbar pelvic stability.
I’m having a hard time convincing people that strength training will make you faster.
I agree with the article that max strength training will make you a bit slower.
But if you program and make transmission to faster strength work like plyos, sprinting, jerks you will get the best from both worlds: You keep the strength and gain the speed.