LOL that's not Uspenski Cathedral. I don't what church that is but certainly not Uspenski. I don't know who wrote that but apparently he/she can't use Google.
The author seem to know some facts about the Finnish church but he/she seem to have issues with EP which he/she imposes on us. I'd say don't lose your night sleep over the article.
He/she gets something right though. Many of the modern Finnish churches are frankly quite ugly and everybody I know agree with that. IIRC even nuns of the Lintula convent dislike their church.