Faithful: Bottom line is, if it was the same style DRM in Waxworks and was removed in that game, it should be the same with Ishar. This amounts to cutting corners to get a game to market.
I assume there's a good reason it wasn't removed from Ishar. I'm guessing that they did not have access to the game's source code, only the original product. Unfortunately, source code is often lost over the years. Without access to the source code, they'd basically have to "crack" the game themselves, and that's a bit too much to expect, IMO.
Faithful: Personally, I rather not have the game for sale on GOG since the entire premise of GOG is DRM Free gaming.
Well, I disagree with this. First of all, it's GOG, not GODRMFG. So saying that "the entire premise of GOG is DRM Free gaming" is ... well, just wrong basically.
Second, this DRM does not prevent you from copying & installing the game as often as you want, which is a key issue here - and what sets GOG apart from most other services like it.
I agree that it's far from ideal to have a game with such a DRM-system. But again, I think it's better to have it here with that system in place, than not have it here at all. I think it would be very sad if GOG decided not to sell games with this kind of DRM (provided they have no way of removing it), as there are a good few classics that use it and I really want some those games to be released on GOG.
So, to conclude, I think GOG should inform us about DRM-systems such as this, but still sell the games. Then people like you can avoid them, and people like me can buy them.