What is your source for this? Aren’t you assuming bad faith?
Regardless I think you are missing the point. Dissent by definition will not have to conform to your worldview or notions of what is true or who is considered a scientist. If you only allow things which your worldview considers true, that is not real dissent. Twitter does not permit real dissent on their platform.
There was a time when the claims Galileo was making about the sun were not considered true nor were they acknowledged by scientists. Really consider that.
> Had he simply said “I don’t agree with this” his account would still be active like all of the other people who do this.
No, if I tweeted “I do not agree that the vaccines are safe enough.” I would get banned. How do I know this? Because I tweeted this and I was banned from Twitter. You’re not being honest.