I was just flamed for building Titanic Hydra on Warwick jungle, is that a bad idea?

I had a (pretty rough) game where i was pretty useless. I can take the flame for that. What i don't understand is a guy said I was dumb for building tank on Warwick and I should "learn how to play him". I'm sorry but every single guide I've read has said to build Titanic Hydra and Dead Mans Plate. Then wth do I build?
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