>>9033756
The level design doesn't suffer from this in SMB3.
The levels are very short, and often don't have enough lanes open for you to get off the ground flying. And when it is used, it has things designed for it.
SMW is where they screwed the pooch in terms of difficulty balancing with flying power ups. Now levels are longer, wider, emptier, and allows continous flying if you get the rhythm down right, at the cost of practically nothing with rarely anything getting in the way. It honestly makes me wonder why they even invented such a dumb power up that makes everything a breeze. I feel like they did just include this for casuals to fly over levels they couldn't beat, or now they're too lazy to engage with any one level and just skips it entirely.