I actually read this article as a complete mis-understanding of net neutrality (well, how I, and many others define it anyway)
Let me explain. If you have a network and you prioritise (using QoS or something), *ALL* voice traffic to ensure clear voice quality - that is not a violation of net neutrality. However, if you have a VOIP product of your own and you prioritise that to the detriment of other VOIP going over the network, that is a violation of net neutrality. The former I have no issue with, the latter is a major problem.
Similarly with video traffic. If a provider were to preference (just you as examples) netflix over showmax, because of some commercial reason, then there is a problem, if all video streaming services were equally treated however, and the shaping was done to protect all video streaming from getting hurt by other traffic, again, I have no issue with this.
We need to differentiate between quality of service applied to protocols, and used to enhance overall network performance vs deliberate degradation of specific content for commercial advantage, the former is not a bad thing, the latter is a terrible thing.
Fact is QoS and some form of traffic management is necessary in any world where there are contention ratios applied, and that would include almost any commodity provider in the world. It is simply not commercially viable to *NOT* apply any form of QoS in those environments without some form of network degradation. It is a very different story in places where everyone is buying dedicated CIR bandwidth, but that simply isn't the case in the home user segment - if it was the price of home user bandwidth would be through the roof, because the input cost of providing that much bandwidth is high. (Consider, an ISP that has 100 thousand 10meg users behind it, would need a terabit of bandwidth if they were not contending)
So yeah - QoS the traffic to protect latency sensitive, loss sensitive real time traffic, but do not protect individual applications / corporate products. The former in my view is still net neutral, the latter is not. If we view it in this context, then yes, net neutrality is important and isn't bad for anyone.