Probably because power users are en insignificant fraction of users for a general public application.

I drive a car and only care about the speed, how far I can drive and to be warned that I have to stop if something is wrong.

I do not care about the temperature of the oil or water, about the tension on the thffr which powers the louhguh or why zgfnkvgv failed.

I know that if something goes wrong I will call the road assistance number.

If someone wants to learn more there is the hidden bus they can plug into, aka Dev Tools For Cars