Flipping is extremely high touch.
Zillow, in many cases, just bought and instantly relisted the property on their own site.
This is the hard part. All the good contractors do this themselves, or they charge so much you don't make any money on the sale, or they're booked out 3 months in advance.
Flipping is low touch compared to that. To flip, all you need is a buyer willing to pay money, and it's a single transaction.