Looks like the team want to keep STE tokensale low profile. I haven't seen any annoucements about it on the website or telegram channel. Well, they probably are trying to be cautious since SEC is looking at ICOs very closely now.
The STeX team stated a few times on Telegram that they are not allowed to promote STE anymore because it's a security, they can only promote A2A now.
there's probably something to that. it seems to be mainly about A2A these days.