This is very unfortunate that MASS after such a good start is abandon by its dev team. MASS has seen its ATH of 1.7$ also but is very much down these days. MASS support multiple instances of blockchain which is a big feature for industry looking to deploy DRAP based solutions.
Absolutely there is zero update about MASS from its development team and if they keep quite like that then its very much expected that MASS will go more down in price and volume. MASS team need to work hard on this aspect of MASS also.
Even if we go with your logic MASS is still stable at price of 0.3$ and it has strong resistance in going down from this onward. I dont think there is much loss in buying MASS at current price. Even with zero response from there development team the project is very much stable
https://coinmarketcap.com/currencies/massnet/
Maybe this is coming to fall more , and will never return to its ATH at almost 2 dollars last year as the market becomes really Bullying .