Reply To: Why are women exempt from positive time bound commandments

–For example, one of the reasons tefillin is considered shehaz’man grama is because there’s no chiyuv on Shabbos. How does that make it harder to find time during the week?–

That’s exactly why we don’t take ‘reasons’ for chukim too seriously. They give a sense of the reasons but they don’t apply in all cases. The main reason for a chok is the decree of the posuk.