That’s a very dumb thing to say. Those decks in general spawn in an instant multiple complex minions (they often have active effects you have to be aware of); they are not beginner friendly decks; or if you think they are beginner friendly: you don’t know the decks.
And that’s the least of it in this case; the “feeding” of Razzle-Dazzler itself has a higher skill cap; I’m personally VERY aware I can’t play it even near optimally because I’m not perfectly aware of what the opponents do or will soon do.