Until the day 100% of browsers support 100% of features with 100% correct implementations, or we have only one browser, it will keep working like this.
So like any other media publication? They are all in the business of lying, for profit or otherwise. I assume people at Bloomberg shorted Huawei stock before they published that.
It should not be a FIFO. They probably want diversity of countries, ISPs, devices, etc. According to your profile you're located in China so they're surely not short of Chinese test subjects for a VPN ;)
When you write Python you already know you're throwing the performance out of the window. In fact based on my experience those numbers are pretty good.