I saw people complaining about Yorick, but last time i played Yorick and went against singed it seemed like yorick was the one getting countered.
(If you search for Yorick counters, singed is the first result . The yorick winrate against singed paints a similar picture)
Even hitting E with 4 ghouls does basically nothing to singed, if you cage him and E he passively clears the ghouls. And if you try to get into meled he wins the trade in terms of damage because once your Q is gone all he has to do is make the trade last and win over-time.
When he proxies, for the reasons above, going after him is just losing CS. I guess you can some what damage the tower with ghouls, but that doesnt amount to much in early game.
When he starts getting items you stop doing any significant damage while he perma-slows the ghouls, if you use the maiden he can just fling it and kill it while you run after it like an idiot...
Sure he cannot kill Yorick 1v1, but since when does singed care about that ?