No, it may have just been supporters, but I remember the faux outrage that she would drop out. I know my lived experience. You all know he can’t win a fair primary, and he’d fair even worse in the general.
The outrage was in.the opposite direction of what you're saying here. Bernie supporters were mad she didnt drop out, because her voters leaned more left than most of the field in the primary. The accusation was that she was splitting the vote to hurt Bernie, not to hurt Biden
And what conspiracies are accurate? She was demonized for not dropping out late in the race. I was a Warren -> Bernie primary voter because I started the cycle thinking that Bernie couldn't make it, so when they started going at her it stuck out to me. My state is late in the primary so it was decided before I even got to have a voice, but I followed the primary closely.
Not how I remember it, but I think they were all reaching for straws to explain another failed attempt. So, I wouldn’t be surprised to find done arguing both sides of the coin. Bernie’s only hope was splitting the the rest of the vote. He simply never had a good coalition of Democrats, and his constant insults to the party didn’t help him any.