can't understand what he says but concluding from your posts I get the stretch.
He 'warns' the people for a new evil - sometimes I wonder about this and if there is any truth in it
why? Because the proces of indiviualization is fueled by games (it equals sitting behind a screen) instead of being social which leads to cohesion in a society... but that's from a sociological perspective - I think this priests aims more at the standard heaven vs hell idea.
Never seen or heard of a Dutch priest who would mention D3 for that matter 
I can't agree, it might lead idnividualization, but very often it leads to a very different situation - socialization, I met some ppl via internet, i socialize with them by playing, talking, trading or even meeting irl. Ive met dozens or even hundreds of ppl thx to Diablo 2 and internet in general
And about that priest ... he's sick and hes warning ppl about "Diabolo" not because some sociological issues, but because behind "Diabolo" stands Devil himself

Anyways, priest "Natanek" is simply mental.