Not that helicopter parenting can't be a problem, but part of the problem is this: it takes a village to raise a child and right now the village is on fire. It's providing all kinds of scintillating, high-reward zero-substance incentives and distractions that massive amounts of children are being trapped by. So, if you leave your child to their own devices, that can also be a problem.
Also: there is only so much parents and teach their kids in order to navigate this world. If they are exposed to these addictive systems, then the independence they'll learn is more derivative and parasitic than self-generated.
Imagine a child being groomed by social media, a new trend, among other things–it's so easy these days. The school system hasn't seemed to improve, either, and promotes anti-creativity/intuition.
Maybe helicopter parenting is less about "parenting more", and more this: more control being exerted because the parent is trying to cope with not being fully competent and a chaotic world.
My parents were pretty absentee and I developed a severe speech disorder and can barely communicate so, yeah, I'm biased. I would have hated the other extreme.
I will never be a parent and I wouldn't know how to.