Trading news with any broker will lead to slippage, why do you think you wouldn't get slippage?!! Doesnt make sense.You trade real markets, not virtual markets. they even warn about trading news on their site https://www.yadix.com/trading-conditions/order-execution/
What happens when you trade news (copied from a site): 'When trading during the release of forex data, markets can become volatile and unpredictable, with sharp changes in prices within milliseconds. When a currency pair “ticks” aggressively, the markets can offer multiple prices per second of an MT4 candle. During these times a news traders experiences slippage, where the order is filled at the next available price.
During “news”, there are also no control over real market spreads and this could lead to greater slippage. Like any market, trading forex relies upon supply and demand. If everyone in the market wants to buy at the same time there are less people willing to sell, this widens the price available to trade on the platform.
Understand how you trade before make comments towards an honest broker because of your naivety! 'scam' is a word easily used when a trader losses money because of his/her own arrogance