So there are 2 MAJOR variables, which they combined... performance of OSX vs Windows and performance of M1 vs i7.
IMHO this benchmark doesn't mean anything just based on that alone.
To accurately compare, they need to run the benchmarks on same processors on Windows vs. OSX to establish the OS performance. Once that is done, you can infer performance between the M1 and current gen mobile i7 processors.
To be honest, this is the reactionary responses that you would expect from someone who is extremely behind. The other thing that is really important to keep in mind is how long and how well established x86 has been for desktops. Apps/frameworks/compilers have definitely optimized for this wherever possible and only in the last few years has ARM has been picking up critical mass for desktops/laptops. Sure over there have been tons of phones/tablets but there haven't been many daily drivers.