It is more of an example of how the internet/software industry is too consolidated to the US, and thus other countries are too dependent on the US in those areas. If the internet infrastructure was well distributed, then people in sanction countries could simply get certificates issued by a different CA, and in some cases they can. However, this is complicated by the fact that the list of trusted CAs is dominated by US organizations (Google, Mozilla, Apple, Microsoft). If you want to reach western audience you must use certs from a CA approved by them.
Then I graduated in International Relations and understood that the hole is much deeper than that.
Now it's pretty obvious with all the shit that trump has been doing, but back then me and much of the people I know were oblivious to what US power really means.
In all seriousness, as an American I'd love to see a healthier, more well-distributed tech industry, but I don't see many companies stepping up to provide competing services. It's my understanding that china has alternatives to many of these products/services, but I really don't see how anyone in Europe could possibly use a US-free internet.
Maybe because the US dropped most of its anti trust regulations, leading to ridiculously monopolistic practices such as "acquire everything that may be threatening".
I can only think of Nokia, purchased by microsoft in 2014. Those phones ran windows CE before that even, so you could hardly have avoided the american tech industry.
All I'm trying to say is, it's impossible for Europeans to both A) be on the internet and B) avoid the US tech industry.