Wow, that's quite a big loss but it shows again that Martingale doesn't work. Had a similar experience where I lost most of my BTC using Martingale when playing Limbo.
When money isn't infinite, Martingale falls short. We all have been burned at some point

His base bet was 20 BFG, so 20+40+80+160+320+640+... with just 6 reds you are in -1260! What do you think about the longest possible losing streak? Just 6 reds on x2 is not a very long streak! The problem is not in Martingale, the problem is in greediness! It's simple math! With a balance of 1600, the base bet should be 0.000025, and you will survive +20 reds, with a 120% increase after every loss! If you just bet a double increase on a coin toss after every loss, after any losing streak your profit will be your base bet!
Yes, we all have been burned at some point! But I never blamed martingale for that, it's I who wanted to make fast money and I got busted with some longer losing streak... and just 6 reds on x2 is not a very long streak!