Liquid players always made unfair statements to try and put down s1mple, it always happens. Elige, NAF, Twistzz, they have all tried to talk bullshit about him and his performance to the media on different occasions over the years. This is probably due at least in part to how he left Liquid way back. The Org must regret letting such a player go now that weve seen his potential, so the current players who aren't as good as he is overcompensate whenever they talk about him, its beyond obvious.
At the end of the day Twistzz doesnt play for NaVi and therefore cant know just how much impact S1mple has on the team. But literally any unbiased person can get a sense of just how impactful he is for the team, and how much stuff he does solo in the server.