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.
I think the point is...lets explore ways of continuing to better the security. I for one don't see anything wrong with Mr. Jones proposing his theory. In Theory...it could in a very remote possible way happen that someone or entity might host close to 50% of MN's...in theory. I think its worth having people who are not DASH fans pointing thinkings out. Its benificial for us to not have ourselves surrounded by only fanboys and "yes" people...but constantly test and re-test and analyize with critical eyes on any and all possible angles.
As Neil deGrasse Tyson says and I quote .... "Test ideas by experiment and observation, build on those ideas that pass the test, reject the ones that fail, and follow the evidence wherever it leads"
Find it, review it, fix it.
That's what I said, only you said it better.