Through his conversation with Isaiah Fowler, Yusuf Zuck learned a lot of valuable information, such as the fact that not everyone possesses Telekinesis, not even those with Level Four internal martial arts.
To acquire Telekinesis, one must undergo Divine Sense cleansing, but nowadays, no one can do it. It was with the help of a senior that Isaiah himself succeeded in cleansing and attained Divine Sense.
Another point is that while his Telekinesis and Isaiah's Divine Sense are similar, there are also many differences. Isaiah can only use his Divine Sense once before needing to rest or meditate for two hours before using it again, he can't use it for extended periods, and despite many years of practice, he's only managed to extend it to eleven meters.
The biggest difference is that Isaiah can only use his Divine Sense as eyes, for things like peeking at nuns taking a bath, whereas Yusuf's Telekinesis can control the flight of objects.