They would be relevant FOR ME if they would speak and deal more with new gTLDs.
It is nice to hear that 1 word .com are great and for millions of usd, but this does not help 99% of people who start lets say in 2018. As stated in previous posts, we do not have time machines...
It is fact though that many of 'old school' domainers are heavily invested in new gTLDs, but most of them do not much care about passing their knowledge to others...they accessed Early Access rounds, got the best domains for themselfs and they hold them now and sell some from time to time. But I did not see any helpful posts or articles from them about new gTLDs, so no need to speak about relevancy to others. I guess they are just learning about new stuff the same way as the rest of us.
And there are some vocal critics of new gTLDs, probably thinking it will protect their legacy extension portfolios value (yes, it works partially) and educating rest of us that only good .com is "woth of living for" and nohing else...again, that is no relevancy to others. Nothing against great .com names, I would love to own them, but just repeating the obvious as many people also do on this forum that ".com is the king" does not bring any new knowledge..it is true, but intelectually, it is not a challenge. The challenge is to try to understand new things around us and how we can utilize them to our advantage and profit.
It is a fact that domaining is a rather individual "sport"...almost no one is going to teach you something on his own expense, so to speak
There are few exceptions though and luckily most of them active on this forum.