I missed 6 time in a row with 81% hit chance. Nothing is impossible but here the probability is less than 10^-3.
The RNG is screwd, everyone noticed it. Truth to be told, RNG is screwd in most software, non only videogames, but there are tricks to level the distribution of outcome. I'm sure Larian's guys and gals are not stupid, if they are going to put their heads on it they will find a solution (DOS2 didn't have such a problem).

The only thing to hope for is that they are reading these posts laugh