Since you say it’s “not that simple”, do you truly believe it’s out of the reach of the Russian govt. to punish this company or the members of it for stepping out of line? They’re a large company in tech but how about their resources for personnel security, or what if they’ve been ordered to do so legally?

Let’s go beyond that. Let’s say that Yandex has been spreading propaganda on purpose for multiple years. That’s every other search engine too. Especially Google! If Russia or China wins a conflict, or begins one economically, do the employees of Google deserve to be punished for their work during this time? When you use logic and apply the same logic to the situation in reverse, it’s quite apparent that you have a bias, and that bias isn’t serving you well.