Why would you say that?
Sure, we would all like to see Hex’s bugs cleaned up an some nice modern bells and whistles added - but as it is, it can make any shape you need with it and it will continue to do so as long as it is supported by your OS. So, no reason not to take it seriously. I have an old copy of Amapi, which was discontinued years ago, but works just as well today as it ever did:)
Seems to me that developers don’t see any future for specialist modelers, with all the multi-purpose CG apps around. Silo has pretty much been abandoned, which leaves Anvil as the only serious contender in active development; and that is very much in Beta stage.