I didn't talk to them and I don't know what they say about their feed.
What I say is that MT4 can't be STP/ECN (As far as I know) unless API
You don't believe me? Google it
Why did they tell you "We'll give you information about it in the future"?
If they are really ECN/STP the answer would have been "People, we are ECN and you asked why we gave you 100 pips spread during a news release? Simple: law liquidity. What do you think about spread using currenex or hotspot during news release?"
Then my guess is they are MM