Note he asked for "countertenor, tenor, baritone, bass" instrument -- not just tenor. Some of us have been requesting more than just tenor and soprano voices for YEARS now. We hear a lot of promises, only learn that such projects are perpetually on the back burner so that the latest virtual nose flute libraries can be rushed to market.
I know I'm not the only one who is frustrated by this. It seems like all the currently available titles are either incomplete, severely limited or robotic sounding (unless you spend so much time tweaking them that it would be easier and cheaper to hire real singers for the job).
I'm glad that music is more of a hobby for me than a profession. Otherwise I'd be tearing out what's left of my hair over this.