Counterpoint,
'Everything rests on the name (Russian term) and the structure (Russian synthesis).'
There is no way any nation on earth will reveal how much it knows about another nation's secret programmes.
'I know Russia is super-rich, but come on - if they wanted to assassinate anyone there are much, much cheaper methods. Not to mention a method inherently preferred by would-be assassins - anonymity.'
Russia is not super rich. Nonetheless £40 mio (taking your word for this number) is not a lot for any half way meaningful nation state. When it came to Litvinenko, Russia never believed we would discover how he died. And, at the same time, pictures of his slow death would send a clear warning to other would-be-traitors (in Putin's eyes).
With regard to Sergei Skripal, I suspect they did not want to poison his daughter. None of us know enough to comment on that. I suspect she may have touched something that the planners/assassins did not anticipate.
Interestingly, Counterpoint, like most purveyors of FUD, you have not offered us your alternative reality. Far easier to ask questions than to answer them. If you seriously believe the Russians did not poison the Skripals or that they were incapacitated by something other than Novichok, please enlighten me as to who did poison the Skripals and what agent was used?!
In the world of espionage we are never going to know the full truth but it is far easier to keep a conspiracy secret in a country like Russia than the UK, with a genuinely free media.
I know who I choose to believe.