as already explained by my colleague, these are very different effects as they come from the analog era. To add them to the h8000 we would need to develop some specific modules only for that and…:
-our time is very expensive as it's used on projects that keep us alive. Developing such modules to just add 2 presets wouldn't really be convenient for us as we don't sell them, nor there is any cospicuous request about this really.
-sometimes you have to live with the changes in technology. Does your PCM81/91/96 include a Prime Time preset? Do you get the picture?
-in time things may change but I don't see this happening anytime soon. Really busy in many different projects at the moment.