I think it would be best if you head to their telegram channel with such a question because they seem to be very active there.
It's a really good idea though, by Getdadaaa, I think the Tachain team should post weekly or bi-weekly updates. However they do post blogs a weekly basis on their Medium page: https://medium.com/@tachain
However, these blogs tend to contain more general information and they do not comment on development turnaround times etc..
well, in that case, let's just believe they are very busy that's why they seem not to be more specific on the social platform. i would like to believe they understand the importance of engaging their community
I think they really have been extremely busy and they are still able to post content for their followers. I would like to see a website update and maybe a little of rebranding, it's always important for projects to constantly improve their image as this really matters to investors.