Why do you guys have Audirvana and Roon?

Its not stagnant. See the release dates, 10 month or so delays between point releases occurred with 30% of all Roon point releases (2 of the 6). In fact, only in 2017 was there 2 point releases in 1 calendar year. So, if Roon actually releases another point version in 2019 it will be one of the most productive release years.