Can we get some context on why certain champs got Invisible vs. Camo in the stealth update?

A quick cheat sheet. - Camo - Camo - Camo

- Invisible - Invisible - Invisible - Invisible - Invisible - Invisible - Invisible

Now, a lot of these seem like no brainers. Stealth was broken into two camps specifically to keep people like from being hard countered by a 75 gold purchase, so it makes sense that she, kha, and the other short duration re-position type stealth moves would become invisible. And on the other side Eve's infinite duration stealth with no movement restrictions was obviously going to be camo.

But there's a few that surprised me, that I would like some insight into. for one, lets him be invisible theoretically forever. Even with no or little movement this means a lot of champs who rely on autos or targeted abilities lose any ability to fight a teemo if they had the time to stealth, even more could technically deal damage, but in way that would be functionally so impractical it'd be useless for anything but scoring a final hit (like 's roar or 's stun), so I was surprised he was given invisible and not camo.

I get that his Q no longer gives him enough time to walk from a bush to the middle of lane and get a backstab at rank 1, but it still seems weird that his stealth get away/approach is invisible while 's ult is camo.

I was sure he was on the list of champs that were instantly deleted if they got pinked, so I assumed he was going to get invisibility, even though he would probably lose the movespeed, instead he got increased duration and camo, I can't really say if this is good or bad, since I don't play twitch at all, but I would like to hear the rationale all the same.