Many of the sources there are highly unreliable and financially motivated. Let's not also forget that the Nazi commanders needed to inflate the number to win favor with the upper command. Much of the Nuremberg trial testimony has later been questioned and in some cases proven to be lies.
There's a whole army of Jewish-funded organizations on those WP articles creating their own description of events, I wouldn't use that article as a source for anything on topics like this.
I've been a WP editor for a while and some of the nonsense you can encounter there is ridiculous. You add either the word "council", "agency", "organization" as a source and it automatically becomes fact.
I have to reiterate that I'm not saying some of the events did not happen, obviously many innocent people died but they were not all Jewish and you don't see other nationalities trying to cash in on misery at this level.