Watched the video... it's only an opinion. My experience with the M97xE leaves me cool toward it as other examples better meet what I want to hear. And that's just me.
I followed this reviewer's links to reviews of Ortofon's Red cartridge. I don't have an Ortofon cartridge - yet. But if I were to take the plunge, I'd start with a Blue. It seems to agree better with it's buyers than the red, and it's stats are more in alignment with what was considered what to look for in the early '80s when I was learning this game. However, just staying with stats, other potential buys mirror the Blue's capabilities for less money. It may be that the Blue has something that justifies it's elevated "cost to play" factor, but until I hear one, or amass the courage to buy one just for kicks, I won't be able to appreciate it's abilities.