It would be unlikely for Safesport to suspend someone without concrete evidence of malfeasance. I think we can assume that some inappropriate conduct occurred, was reported and was verified enough for Safesport to take action. It may or may not have been related to the subsequent tweets that were posted. Until those tweets are verified as having come from Ross, I still harbor doubt as to their veracity. But I have no doubt that Ross behaved inappropriately to someone in skating and that was reported and acted upon. What the sexual harassment was, we may never know. I agree that Ross's silence can be taken to imply acceptance of the ruling. Commenting on unverified evidence would not be wise in any circumstances.
I don't necessarily agree, in today's climate of the US you are presumed guilty until proven innocent in the public's eyes and I don't think SafeSport wants to have someone portray them as being soft on allegations. Food for thought on sexual harassment its a very broadly defined term to the point the UN says examples of sexual harassment include looking at someone, telling a crude joke, hugging someone, etc. We don't know the details of what led to Ross's suspension but given the very light punishment it really wouldn't shock me if it was something crazy stupid minor like an offensive dirty joke told to the wrong person. And as someone else pointed out his silence could be based on his lawyer's advice.