I think this is part of his cultural upbringing. That theatricality is common to all Eastern denominations and even people who are private (i.e. not always online) exhibit pretty similar excesses in devotion sometimes. I'm willing to bet his grandma had a corner of the house dedicated to incense, saintly icons, and other religious art. In much the same way as you often see foreign-born Catholics with decked-out home altars.Some of the factual arguments he gives though are a bit annoying and it's hard not to see this move as just another episode of his theatrical purity spiraling. He's a flawed man pointing out weaknesses in a church that took him back with his history and reputation. He's a church shopping American complaining about a lack of authenticity of Armenian monasteries. He's a sinner publicly scolding his former parish for dirty secrets and fakery. Perhaps the church needs some forgiving and rebuilding just like Roosh does.
I understand the need for a strong guidance. Once again though, having a praying corner and desiring "active miracle-working icons" feels a bit like a way to demonstrate a faith, rather than deepen it. Roosh is an intelligent enough man to grasp a more abstract, intimate approach to faith but he chooses the more bombastic aesthetics at every turn. I can tell he lives a minimalist life, yet he seeks all this physical stuff for his prayer. It's like some sort of a medieval LARP.
And I'm only commenting it because he's making it all very public. I wouldn't have otherwise.
We outside the Orthodox Church affectionately tease them as loving "smells and bells" for a good reason. Orthodoxy relies on a certain theatricality of rite and worship to reinforce the majesty of the supernatural, but moreso even than Catholics do in some ways. Him reaching for that rote worship and desiring the... I guess you could call it the appearance of orthodoxy? I'm not sure how else to describe it. But there always seemed to me to be a sense in which the production of it was integral to it being votive enough.
Anyway I can imagine some of it might be church-shopping, but I can also see how someone raised the way he was finds the theatricality necessary. He does talk about how his church has lost a lot of the elements it used to, and I'm gonna go on a limb and guess that they were things that he had in that church as a child and wants back.