Yes, I think I came across that article in the past or perhaps another one that addressed also matters concerning the late Wolfgang Smith.
I honestly have only read a good part of the article so far, but I understand what the author is saying. I recall Coulombe publicly apologizing on Youtube for dabbling in tarot cards His upbringing made him strong enough to resist falling away and for other religions I can tell, but there is a worldly connection there indeed with Hollywood, knowledge of occult subjects, and certain cultures. While we need to have necessary knowledge of certain things, we don't have to know everything, for that can be a danger to our faith.
Aside from the support of Feeney and aversion to Thomism, Charles Coulombe has made some worthwhile contributions about understanding monarchy and statecraft as well as genuine cultural values. History is his strength though, but it does not mean every historian understands everything about history properly.
I am not sure which friend you are referring to, but I am connected in some way to Charles Coulombe via social media. I have barely said much to him on there though but have asked questions on his show Off the Menu, which should be ending this month after a run of almost ten years. He is busy and travels a lot, and so I refrain from trying to communicate with him. Now the closest personal connection I did have with him was knowing a married couple who attended the chapel for a short time for whom he was the best man at their wedding.
I do find him comical still. I can see though he does need a break since he is getting older.
I get wary of when scholasticism and Thomism are downplayed and even blamed for the current crisis in the Church. That is already a problem right there. A classic case of rejecting St. Thomas Aquinas would be Ratzinger, and we know where his situation went.
The other issue is shortsightedness of apprehension of the crisis in the Church. Some of the above named authors would fall into that category. Recently, I was reading some lines of the Instituto Mater Boni Consilii magazine Sodalitium reviewing what Yves Chiron wrote about the history of traditionalists. The article said that his assessment was deficient basically since he left important and relevant information.
It reminds me of Michael Davies as well. He has good material except, having read the critique of John Daly, he falls short of understanding the crisis properly.