It probably happened. So what? I mean, are we kindergarden children to assume no foreign powers work at continuously in any country? Helloo, Russia was just next to Ukraine and did a shitton of stuff, up to and including whatever it did to ignite Euromaidan.
You can either ignore one side and point to the other (which is like... no comment). Or go into absurdism and say there is no real internal agency in any country and everything is a conspiracy theory. Or just look at things and use a bit of common sense, compare Eastern and Western influences in Ukraine and never ever again mention that particular anecdote, because in context it's absolutely ridiculous.