I’m guessing Reinahrdt’s ultimate bug is hard to fix.
Don’t forget that Jeff posted that on February 27. He expected it to get it fixed around early April. Maybe it’s harder to fix then he anticipated.
This is not the first time they haven’t fixed a bug yet. Mei has a bug where she can be pulled out of Cryo-Freeze by Roadhog’s hook. This was posted on February 23:
It’s still not fixed.