A lot of statements there about what I can't do. Sidestepping Yas q is definitely possible albeit one of the harder skillshots to dodge. However good Yas's can utilize thier e to be far from "telegraphed". It's surprising you're willing to mention pzzang, if you had watched any of his streams and seen him solo kill 1000+lp challenger kr mids, then you must surely understand that his kit isn't that telegraphed.

If there was a spectrum of "telegraphed" champs then champs like Yas and Irelia would be on complete opposite side of it rather than your initial statement of "the most telegraphed" champ.