Sadly this is not really interesting, it's disingenuous. He benchmarked against a ten year old (03/06/2012) server CPU. My two year old intel laptop cpu (i7-9750H) also outperforms the xeon's he's comparing against by almost 40%.
The M1 is a great chip, it's sad that this got published with a "server chip" comparison at all. A real server class CPU from the modern era, at a comparable price point, is the AMD EPYC 7443P, which is 400% faster on cpu bench.