Hey look mate i think you've took this a bit personal.
Your right in that you don't need a bubble bag or isolater to make water/ice hash but you do need cold water. (thats where the name comes from, surprise surprise!) The only reason i mentioned them is that you was going on about buying a press to make ice hash.
They're the same thing in that they're both hash but the process is different. Ice/water hash requires ice/water ( wow thats another surprise innit) Pressed hash is pressed together without ice/water, thats the difference mate. I'm not sure what your going on about you say that the difference between them is that ice hash is more refined, which is kinda the point, that it's a strong hash! So how can they be the same if it's not as refined strong and is made differently.
If your gonna disagree again some links to backup what u say would be appreciated.

Peace