Hecarim was getting 2 dashes (E engage, R to follow), and now he lost that second proc because Akali was abusing yet another thing she shouldn't. "basically zero change" is such a stupid take
So I see your point but keep in mind a couple things:
You still get credit for the first ~150 units of the dash. Hecarim E doesn’t go a ton farther than that, which means “basically zero” still applies when we’re taking the entire nerf to be like 10 chem energy.
All of the nerds combined (4x as many dashes on Akali, no juice on minion auto) amounted to 1% off of Chemtech Akali. So again, basically zero change for Hecarim.