Upshot of the objection is: boys are busy, rough, and loud.

The objection then practically concludes that letting them play hard as they desire is the only option, and the acceptable alternative thereto is At least in public school, boys get diagnosed with ADHD and plied with Adderal to enable adjustment to [learning while sitting still for very long periods]. I reject any conclusion that reduces to either letting kids run wild or drugging them into submission.

Montessori finds a happier medium: the child is permitted to move and change focus as desired, while gently encouraging them to learn focus and self-control. Maybe it's not optimal for some kids, but it's sure better than the alternatives the link prefers.