To put the "over there" remark in context, I grew up in a neighbourhing country.
(yeah, i know there's a pro version of nginx. never used it)
[1] - https://www.f5.com/company/news/press-releases/f5-completes-...
Clandestine ops have an extremely low probability of success using this strategy and nobody who does them is this incompetent. Especially not Russia.
So in that respect it isn't that impressive that he stayed in Russia even when (mostly non-state) news became more and more disturbing. Probably even less so if you assume a line of reasoning that nobody would bother with relatively small foreign company built around open-source product, a company that's already sold to larger foreign company (conveniently forgetting about the price that F5 paid for that company).
(edit: s/american-registered/foreign/: Nginx Inc. was registered in British Virgin Islands)