@Riot Nerf Rammus Taunt, was it needed and why was it toxic?

I'm here to question the Rammus taunt nerf that happen a long time ago when Fiddle support was dominant. I was just wondering if a red could possibly explain to me why Rammus main tool, a single 3 second scaling taunt was nerfed. I understand that at the time Fiddle's Fear was powerful, it was making him into a strong support, and I understand the nerf to his fear; I mean it was a RANGE click CC effect that was being abused in botlane. But the Rammus nerf just seem like a random hit, with little justification.

Hear me out, Rammus isn't a top tier jungler, he isn't seen in competitive play and he was really a 1 trick pony. Taunt requires you to be at super close range, and while powerball is great for closing that gap it isn't as good as you think. Infact it's the reason Rammus isn't pick in high end, his initiation of teamfights is rather weak with the amount of mobile champions, ranged targeted CC effects, and over all better counter initiates from enemy junglers. Not counting the weaken version with Tenacity, his key skill for his kit to resolve around drops to a 1.5 second taunt. Mind you this isn't even a stun. After that the enemy team just ignores you, and this where enemy junglers do more.

TLDR 3 Second Taunt was needed for his kit, could you re-tune his ult to slow, or help him in teamfights. He really is a outclassed jungler that could use some help. Mao, and Naut too. Thanks