Some things that have been mentioned:
Frequency may contribute to gains
Intensity stimulates gains quickly
Consecutive intense workouts can lead to bodypart AND systemic overtraining
My training style is HIT for muscle growth, but I do other stuff. Yoga, HIIT, light weights.
I call this other stuff "Training for recovery." You're not going to lose muscle by training well below your capacity, but you will stretch the fascia, engorge the muscle with blood, and promote recouperation, raise your testosterone levels, release endorphins, and create a post-workout state that can be anabolic if you eat the right nutrients soon enough.
Training for recovery won't force your body to grow. For that, use HIT. Training for recovery will help your body recover. It can also improve your total health.
Should you cycle this training? Why not integrate it in a staggered fashion. If you did chest HIT style one WO, the next chest WO could be very low intensity -- maybe just a warmup, pump, squeeze, and stretch with light weights, high reps (12-20), and some stretching in the sun.
Next chest workout would be HIT, balls-out.
The most important thing is to be able to detect overtraining. When you can pinpoint overtraining, then you know your threshold.