Anyone who believes that buying private links into a providers network is the same as your traffic getting paid priority knows jack shit about network ops.
The Fallacy of Equivocation.
You've substituted the more specific network-jargon "priority" for the usage of "priority".
Once Netflix PAID Comcast then Comcast gave Netflix PRIORITY access to the Comcast network. The PRIORITY access means bypassing the choke point that Netflix was previously restricted to.
No one is saying that Comcast changed the QoS or priority of individual Netflix packets. But that is what you are denying.
Now I'm sure a bunch of people (who are not network engineers) are going to argue over the wording and philosophy as to whether or not buying paid links into a providers network constitutes priority or not. It's not.
Again, you are substituting a more specific network-jargon usage of "priority" that no one other than you is using.
And you are denying something that no one else is claiming.
That is the Fallacy of Equivocation.
The only difference that buying direct links in meant was that they got to skip the congestion in the peering points.
Which is what everyone, except you, is saying.
Once Netflix paid Comcast, Comcast users could suddenly get better access to Netflix.
But Comcast refused to do anything to address that congestion UNTIL NETFLIX PAID THEM.