Stop this. I can manage my own wine config. This is a message for the GOG team.
Also, stop releasing dosbox games calling them windows. I can manage my own dosbox config as well.

It's not like this is the only game that does this. I own 5 others (of which only Enclave and Septerra Core are directly for sale). I don't really see anything wrong with this. By claiming Linux support, they at least provide some guarantee that wine works with this game. They also make it very easy to just download the Windows "native" game if you want, as well. I use lgogdownloader, and just have all of these games set to windows installer via gamespecific/<game>.conf (e.g. two_worlds.conf):
-----
{
"platform" : "w"
}
------
I guess the only thing I might see wrong with this is if people are fooled into thinking that a game is actually native, but there is no guarantee that a native port will work on j. random Linux machine, either (e.g. I currently have 5 games I have to use the Windows version because the native Linux version is broken, and 3 games that don't work in either native Linux or wine). I don't see anything wrong with this, either. However, it would be nice to make it more clear that it's a dosbox game. I can manage my own scummvm and ags games, as well. In fact, I don't ever use the "start.sh" script, either, since I have my own game wrapper scripts. That doesn't mean that others know what they're doing, though, so again, I don't see anything wrong with supplying their own wrappers.

Well, they are Dosbox games that run within Windows, are they not? I use my own Dosbox and configs, too, and admit that changing to SVNdaum Dosbox can be a bit of a pain from GOg's bog-standard dosbox, but that seems to have gotten a bit better--at least it now includes limited shader support. But I have a system worked out which makes it pretty simply to switch--also do my own dosbox.cong files too--don't need 2-3 of them. Like it or not, my guess is that unlike us, 95% of GOG's customers got lost after the word "wine" in your post...;)

I was about to comment on this. I went into the King's Tomb on Windows and it ran terrible. Then I downloaded the Linux version and it runs great. No slow down and it loads almost twice as fast.