It definitely used to be true, and if it isn't true any more, it isn't clear when it stopped being true.

I found someone 9 months ago reporting the issue was still happening for them – https://news.ycombinator.com/item?id=30737328 – so maybe something has changed in the last 9 months.

That's very strange, because I've been using it without issue at least twice that long.

I’ve been using it about as long as you and I have had issues with the domain.