I don't post on social media, do not want to and do not have access to it even if I did. Since the people who do post on social media did not say anything about 2.5, why would they post about it being released later? You can see the current focus of what is being posted.
The vast majority of people DO NOT READ anything on social media about their games. As the average player has dozens or hundreds of games, if they tried to keep up with posts about all their games, they would never actually play them. I spend about 0% of the time reading about my favorite games other than the news headline that pops up in Steam. What I care about is what is released for my games NOW, that I can play NOW, not some pipe dream about the future.
Yes, you asked about communication, but I don't think you will get anything different in the short term. We have a LOT of things going on at the company and like most companies, we don't spam out our internal day to day operating processes as those are private for many reasons. Just like every employee does not know every thought or plan going on at their company.
Forget the specifics of the roadmap. Once the first date was missed, everything would obviously shift and as time goes by, we will and do change our mind about what is best to release and when and we can because we did not marry the roadmap. That is why we put the disclaimer on it, because we know we may change our minds for whatever reason. Smells was not on the roadmap, but I have wanted it to return for years and I convinced people we could do it in a reasonable amount of work and we are. Others thought the same with apiary or a chicken coop or other secret features that are being worked on or planned.
Disclaimer: Everything I or other employees post on here is our personal opinion as the company can and may do something different from what we have said.