Well, the author does label that one specifically as halakhah. But that still leaves 612, except for the handful that Maimonides neglected altogether. I’ll have to dig those up later. So I’d need an app to keep track of 612 commands. Got anything else you can eliminate?
That would take forever... Better to go through the entire Torah on your own and discern for yourself. Although Karaite links might be helpful to you - Karaites are to Judaism what Protestantism is to the Roman church - I don't entirely agree with them either (they too are insular, which is faulty according to the design of Torah), but I think you will find much to chew on through them, and I think you are learned and open-minded enough to ponder... The Karaites reject Talmudic/Rabbinic tradition. So they are likely to be more on point wrt their interpretation of the commandments.
And another thing to bear in mind - all commandments are not for all people - Some are personal, some are national, some regard the priests, some are direct strictures, some are guides to good living... The things beyond your personal control are not yours to do.
It is a remarkable ruleset to govern nations, religion, health, welfare, war, relationships, contracts, and personal... etc. You leave me with the inference that it is all too much, but I would submit that it is quite concise compared to the laws of any other kingdom/nation you might compare it to.