But those are very much companion quest companions, no? You have no reason to search for creche without Laez, and have no reason to talk to Spike without Wyll.
With Zorru I get what you are coming from as she mentions him to you, but Spike only becomes relevant as something more then "just a named goblin" if you have Wyll with you when meeting him.
I disagree. If you express an interest in buying a sports car from Mr. X and I encounter Mr. X while you're at home playing PS5 there's no reason why I can't inquire about his sports car on your behalf. Just because you've left Lae'zel in camp doesn't strip the information from you that she's looking for information about other Gith from this Zorru character.