Think of an inappropriate analogy: for example, refrigerators developed by some manufacturers have the function of tape recorders. In order to let the family members who can't meet open the refrigerator again, the publicity is to get communication. But if you really want such a package of casual stickers, isn't it ok? And does the refrigerator make sense for such a function? In addition to the possible increased failure rate.
The same is true of the equatorial telescope and compass of the telescope. Aren't the first two compasses enough to roughly determine the direction? Why use a telescope? Besides, the equatorial plane of the telescope uses the time angle coordinate system, not the horizon coordinate system.
If the above example is redundant, a telescope with a compass can be said to be the opposite.