Why exactly was this trial celebrated? Who gave the Netherlands the power to judge these people? How could they even have a fair trial if they weren’t present? The West is a joke.

There was no celebration, the court has delivered its sentence. The questions you asked and perhaps some you didn't, are answered in the article. Wikipedia is also good: https://en.wikipedia.org/wiki/Malaysia_Airlines_Flight_17

Because ruzzia killed 298 people from 17 countries?

Being tried in absence is not a new concept.

Account created 17 days ago. Nice. Totally not Russian trolling.

The court concluded they didn’t press the button and weren’t involved in the decision to target or fire? Am i reading that right?

What about responsibility for the airline and the regulators and the pilots who allowed a flight over an active war zone?

Handing down life sentences for three people involved but not in the decisions part of shooting in a show trial does not seem like justice.

What makes you say that Donetsk in July 2014 was "an active war zone"? Also you may be interested to know that at the time MH17 was shot down, several other passenger flights were in the vicinity - see the "Nearby aircraft" section in https://en.wikipedia.org/wiki/Malaysia_Airlines_Flight_17

I mean dudes setting up antiaircraft weapons in random fields isn’t enough?

Several airlines had already rerouted around the area before MH17 was shot down for reasons obvious at the time, there was active fighting and antiaircraft activity and airspace restrictions in place.

It was foolish and irresponsible to be flying anywhere near there at the time.

https://www.bbc.com/news/business-28356745.amp

It looks like that at the time, the decision whether to fly over the area or not was a judgment call. In hindsight some companies got it terribly wrong. From Wikipedia:

Some airlines had avoided eastern Ukrainian airspace prior to the MH17 shootdown, while many others, including 62 operators from 32 countries, had continued to fly routes over the region.

Your statement "I mean dudes setting up antiaircraft weapons in random fields ..." gives somewhat incorrect impression.

What is known is that a Buk 9M38 surface to air missile system belonging to the 53rd Anti-Aircraft Missile Brigade was deployed by pro Russian separatists in the Torez area.

It sounds like you are correct on the not firing the missile.

>Prosecutors, after the findings of an international investigation, concluded that the four men did not “press the button themselves” but were responsible for taking the BUK from Russia and deploying it on the battlefield.