While I agree that the amount of people tinkering with the game files is probably comparably high among GOG users (compared to say Steam users) I think you are overestimating the technical expertise of the actual "average customer". There's millions of accounts here (I think GOG stated something about 1.4 million customers being served each month). The active forum members are more likely to care more about that kind of stuff but they pose only a fracture of all the GOG users out there.
Perhaps I am overestimating, but the fact is, if they did include the "broken" stuff in every release, we would have just as many posts about "feature X is broken" as we already have posts about "feature X is missing", if not many, many
more (because people would be actively trying to fix the broken stuff and seeking help from the community). Even if it is only the more active forum members posting about it, there are far more non-active members and others reading
about it, and that is bad press that GOG does not need. Not to mention, information about what is broken would very likely work its way into the reviews of the games, which again is bad press GOG does not need. It is safer for them to simply not include that stuff they can't get working.
However, let me be clear, I am only speaking in general here, not about this particular release. In the absence of more information from GOG themselves, it does appear that this missing content was not done for the sake of a "clean" release, but rather to either meet a deadline or out of some kind of laziness. I didn't even buy the Larry stuff and that kind of pisses me off.
I know but the thing is their policey seems to be remove files we don't use, which in the cases of Larry 6 removing the SVGA files because there not using them so "there useless" was a dumb move because it's workable and winnable in Dosbox and so when someone see that their using the graphically inferior VGA version of the game there going to go poking around and see if they can't just dosbox up the SVGA version instead not finding any files there going to wonder why there missing and so there going to post their query on the boards and people are going to see and wonder why they got the less ideal version with the better version removed completely when it was workable in Dosbox. Also removing the setup files for Ultima Underworld was silly as well since i know either have to use Pix's patcher to set the config files to use non roland MT sound or go in and change it manually which had the set up program stayed in the package I could of just booted that up and change it manually
That doesn't make them look good either, as I said I get removing broken windows versions from releases since as time goes on they become less and less workable on more and more machines but with this game that is not the case
From the DOSBox site
Leisure Suit Larry 6 - Sierra (1993)
Tested By: DesDZ
DOSBox version: 0.72 (supported) http://www.dosbox.com/comp_list.php?showID=177&letter=L
Oh and this one of many videos on Youtube of the Hires version of this game running on Dosbox: http://www.youtube.com/watch?v=a8yJaDtMrOw
Again not to beat a dead horse here but honestly I hate to say it but it feels like they removed it to keep people from asking "why are you guys running the lo-res VGA version and not the better SVGA one" hopefully it's not the case but honestly I really see no reason for this outside of hey slap these in scumm and we can get both mac and windows suppourted with less work and if that really was the case then that is just wrong.
But yeah my point is they really should look at that policy of just removing unused files from their releases as honestly alot of people would be less upset at the Larry release if the SVGA version was still there, yeah we would wonder why they didn't use it but we be more content as we could just slap it into dosbox ourselves.