No that is not true at all. You as a user can verify that you are using Bitcoin code or whatever code you want to use. If it were peer-to-peer like bitcoin that could be enough. But it isn't. It is peer-to-masternode(s)-to-peer.

You can't and never will be able to verify what masternodes are doing, as long as they appear to be doing what they are supposed to. But what else they are doing you have no idea. At all.