Think-man, 2.7% of all internet traffic can mean many things. But to think that 2.7% of the usage of the internet is for playstation streaming, or that 15% of the usage of the internet is for Netflix is highly misleading.
1st thing to consider: data volume =/= traffic volume. People can be using the internet and making use of the internet for things in a much more invested way, despite the volume of data required in some of the objects used by Netflix and other media services (like huge games). Traffic means more than data, it really depends how it's measured.
For example, a bus can consist of 1 vehicle, but it can hold up to 30 people. In terms of traffic it is one vehicle, but in terms of people transported it is much greater than 1. From that point of view, a download of a PS4 game is perhaps 4+GB of data, but only 1 single game. In terms of traffic it could be considered as 1 item, though in terms of packets it is many. The % will highly vary depending on how traffic is measured.
This 2.7% makes it sound like Sony is responsible for 2.7% of all operations happening on the internet, which is insane.
2nd thing to consider is that the distribution is by application and how it is measured. What begs the question here is, how did they get the data? Where is facebook in all of this, is it 30% of the 34% marked other? Does the massive amount of torrents shared not surpass the % of Netflix or Youtube? If this is global, how did they get this information, from the service providers of every country? With privacy laws in place, how is this distribution of usage of data known?
To be honest there is so much wrong with the article and with the title that it is difficult to write how ludicrous it sounds.