I don't think the Wyatt Family should be pushed that hard. While Bray Wyatt himself may have star potential, his two lackeys Rowan and Harper are nowhere near close to that level and they shouldn't be pushed to that point.
Part of the problem with WWE nowadays is that they're trying to make too many people into "big deals". The roster is too top heavy, which makes everyone else look that much weaker by comparison by making them out to be jobbers. Trying to make the Wyatt Family a "big deal fairly quick" will only make it worse.
Every stable doesn't HAVE to be a "biggest threat to the company". They shouldn't be thrown at Cena, Punk, Sheamus, Orton, the McMahons, etc. right away, because then there's nowhere to go but down and we'd just complain that they've been "buried" because they aren't World Champions and won't be any time soon. We've already seen that with The Shield to some extent.
If all they do is squash Zack Ryder or whomever for the first few weeks and then immediately go into a feud with a main eventer, all they've served to do is further perpetuate the "Non-main event faces don't matter" environment that we've been subjected to for the past few years, and thus their presence is no real improvement to the product.
Ideally, they should be firmly in the midcard, but they should be feud with the midcard faces. Not squashing them, but always winning. Put them over as a force in the midcard, with midcard faces stepping UP to challenge them. Just keep attacking guys like Tons of Funk, Ryder, Gabriel, Yoshi, A-Ry, etc. until they band together and try to take on the Wyatt Family in various six man tags, where the Family just keeps winning. Wyatt has his gimmick and his weird promos to keep him afloat, and thus doesn't need the rub from beating up a guy like Cena, or being thrown into the McMahons' orbit off the bat.