inb4 Bloodline Champions
Laning is about control, and anything that gives you more options to exert control (or lose it if you do it incorrectly) is fundamentally more interesting. Taking away options under the guise of it being a counter-intuitive mechanic feels patronizing. And when options to perform in the lane are taken away, that takes away opportunities for me to outplay my opponent.
If your primary argument is that League's laning is better simply because you get to overtly interact with your opponent by throwing spells at them then I can't really help you. To me, I interact with my opponent just as much, but I don't have to use my spells to do it. I accomplish this by playing the lane correctly.
Your example of using Bounty Hunter and "doing nothing" in lane shows to me that you didn't play the game at a high level. Maybe he got in a ton of harass when I went in for a CS. Maybe I just didn't position properly. If I die, it's because I suck and the opponent outplayed me. I don't hide behind the excuse that "it's not fun because I didn't do anything."
I'm never doing nothing, no matter the match up. Just because I didn't use a spell on my opponent doesn't mean that I'm not actively engaged in winning my lane, either by last-hitting properly, by denying properly, pulling creeps, ferrying items via the courier, or roaming to secure control over the rune. These are all opportunities for me to come back into a position to where I can contribute to winning the game. But in League, I don't have these opportunities. And people wonder why League is called "League of Snowballing."
Sven has a point-click stun that lasts for two seconds at level 1. That can win lane by itself, but apparently it's unfortunate that he needs to be gated behind mana costs? Can you imagine if he weren't gated by mana costs? He would win every duo lane. Or perhaps we can consider that his other skills (+armor aura, cleave) give up control because they either keep your creeps alive longer than they should, or you mess up your own CSing. How about Taric from League? He can't use his point-click stun more than three times without burning his mana pool, and his has a random range from half a second to one second.
I like jokes, but it's clear that what makes me laugh is not the same as what makes you laugh.
It's okay. People don't have to understand the brilliance of Jungle Taric.