The crash is a brutal game, there was no 100x for 700 rounds. Imagine using martingale and getting bust after 400 rounds without decent multipliers. Sometimes the three times b2b 1.00x going to hit and it is really a nightmare to chase losses on the next rounds. Btw, Roobet crash has a 3% house edge, as far as I know. For comparison, I know other alternative platforms offer the crash with lower house edge around 1% but the Roobet crash is only game I have managed to catch 7000x once.
That's a very low odd chance you are trying to do and sometimes low odds do not come to conclusion as much as you hope. Think about how many times people "complained" a casino is rigged because they had 10+ times in a row loss on a 2x bet, by logic that should be one win and one lose on average, so you should win 50% of the time, but sometimes you get 10 losses in a row, that means in the case of 100x that means you could have as many as 1000 losses without a single win, and I have seen lower odd things happen in crypto, seen as many as 22 losses in a row at 2x which means you could lose 2200 times on 100x for the same thing.
I am not saying that's normal, I am just saying that it is "possible" and that's why we should not be focusing on what is bad, but focus on what could be the possibility and we will soon realize that what happened was possible.