It is not about trust. Even in crypto you have to trust certain people. For example, every investor holding DASH at this time is trusting that Evan and the core team will pull off Evolution as advertised and further increase the value of the coin -- else you should sell now.

No, it is not about trust -- it is about properly aligned financial incentives. And in this case they are aligned properly. I can't think of any reason for Node 40, for example, to snoop becuase they would be killing off their own business. Not to mention hurting the value of any DASH they hold. It makes no sense.

Not to mention there is no evidence I have ever seen of 2000~3000 nodes (i.e. enough to do any reasonable snooping or double spending of IS transactions) being hosted on a single service...

I agree that more decentralization is always better, but this is a non-issue started (seemingly) by trolls.