Reading this made me feel really sad...
"-> We’ll be keeping a really close eye on Ziggs bot lane. Assuming it stays healthy and interesting it’s something we’d want to support if it looks like a viable thing.
We want marksmen to be excellent choices bot lane. We’d like to see other classes there at least a bit, but don’t want to see them push marksman out or overshadow them at their core strengths. If they’re not really effective picks bot lane that’s something we’ll address quickly. "
http://www.surrenderat20.net/2017/01/red-post-collection-meddler-on-marksmen.html#more
then talks about buffing marksmen.
So Marksmen will always be a must bot lane and is okay for there to be a marksman in the jungle and mid lane and top? but if some other role tries to be bot in place of a marksman then they have to be on a watch with a warning? why? This isn't cool.. weren't even the pro's doing switches ? why does that bother the developing team so much? the game is already unbalanced if it's worries of a balancing nightmare...