This is a bit laughable. Noone who read bonding scene said: "Well Rand is a bit unreasonable here." Because we sympathize with him already, we already understand why he distrusts Aes Sedai. Scene in the book already impactful enough. And it would be also impactful if Rand was actually main character and focus of show. But he wasn't because showrunner really wanted focus on female characters instead of male. That's why Alanna more important character, less time to spend with guys who already have WAY to many screentime in the books (and his boyfriend could be in show more).
