Hate to say it but think you must be confused with another project.
It is not impossible. But only really on the basis that nothing is impossible. I am less involved with cryptos recently than I have been historically. I am near-certain however that I've recently read a post by what appeared to be someone closely affiliated with development of this project, whose estimation regarding masternodes was that the arguments for them being outdated had become overwhelming.
I'll continue to look, I am certain such a post is out there somewhere. If not I apologise, but bitcointalk's scrutiny is enough to find it if I'm right.
Well I am on the Stakenet team and can honestly say I have never heard anyone say anything like that and that everyone is of the view point that Masternodes are a necessity for our project and vision. If you can find anything though then by all means feel free to share it.