Can't argue with that, at least if we're talking the sequence of Darevil - Alias - Cage. If we're talking Daredevil - Alias - Daredevil Season 2 - Cage, on the other hand, I'd say that DD2 for all its flaws is still better than the other two.
But yeah, they better get it right with Iron Fist, or goodwill will start to run out.
But from the trailer, I'm hoping they'll focus on making this a really good kung fu show. As long as the fights are awesome, there's not much can go wrong.
(Well, okay, I say this, but I never finished the first season of Into the Wastelands, which had little going for it except for really awesome kung fu fights.)