Sure. Are you agreeing or disagreeing with me? The T_D subreddit explicitly says that dissent is not tolerated, so yes, I suppose it is in line with the purpose of the sub. The problem is with them being upset with twitter for enforcing their purpose: a platform open to everyone to express themselves outside of hate speech/abuse.
If they were engaging in abuse, I agree that it's hypocritical of them to complain. From the article however it is not clear if they were abusing people or just voicing right wing ideas, which as far as I know, is not forbidden by any TOS:
> Several alt-right figures have been suspended from Twitter, but the social network is not saying why
