RNG does suck. I've had two drop for me. First one after about 15 runs and after around 20th the second time, yet some of my clan mates who have the same amount or slightly more completions haven't got a single one.

Regarding raid exotic drop rates: [quote]We get this question a lot. Checked with the team, Eyes of Tomorrow does have a cumulative drop chance-- meaning each week you beat Taniks on your account, the chance of you getting those sweet sweet homing rockets goes up (eventually all the way to 100% if you are super unlucky)[/quote]https://twitter.com/joegoroth/status/1357077939792142336