Why did they abandon the idea of telepathy between Troi and Riker?

Question

In the first episode of Star Trek: The Next Generation: "Encounter at Farpoint", we have this dialog (and diapath):

TROI [OC]: Do you remember what I taught you, Imzadi? Can you still sense my thoughts?

TROI: A pleasure, Commander.

RIKER: Likewise, Counsellor.

PICARD: Have the two of you met before?

RIKER: We have, sir.

PICARD: Excellent. I consider it important for my key officers know each other's abilities.

(They step into the turbolift)

TROI: We do, sir. We do.

TROI [OC]: I, too, would never say goodbye, Imzadi.

And thereafter this is unceremoniously dropped. But there is still telepathy commonly, most notably between Troi and her mother.

Why did the producers abandon the link between Troi and Riker?

(I see no obvious reason this would be a hinderance to good storytelling, and in fact, I think it could have been a productive one.)

Answer 1

This may have simply been one of many pilot/season changes that get made when a show moves from a single pilot to a full season.

It is possible that the telepathy was simply deemed too confusing/strange/uninteresting to test audiences that they showrunners decided to let that idea drop in favor of other elements which had better responses.

As to Deanna/Lwaxana having telepathic conversations, this was more done to further note Lwaxana's disrespect for non-betazoids in social situations, further inflating the character's perceived ego. Deanna's insistence that she speak her words shows her desire to integrate with her crew, rather than her mother's worldview.