I can say, that's normal. Yesterday, i saw on other popular crash game site, it has 12 streak losses under 2x multipler. If you think 14 losses aren't normal, that site will bankrupt since you only need bankroll which can cover your losses 14 times in a row. Each hash also unique, you can't say it's not normal too since no one knows what's the next result from each next hash.
Unless you've experienced something extremely alarming till then you could not understand that feeling. What he is believing is totally typical, only victim knows that losses 14 times in sequence. Luckily I've been never going through such horrible things, and wish none one experience such things.