Yeah, not sure why not at least being upfront about the possibility is so hard. In Spain we've had train derailments, flocks of people being directed on social media to force themselves across borders, subterfuge deluxe everywhere and what not, yet the government is mostly silent and claim it's all unrelated, but it's hard to not also see the parallels across the continent and reach your own conclusions. But then also, don't wanna fall into some conspiracy theory trap either...
Russia isn't the only group interested in doing terrorism in The Netherlands. Recently the Farmers Defense Force and Extinction Rebellion have caused far greater disruption.
Could it be Russia? Obviously. But in my opinion the odds are less than a coin flip.