Also, Atari's official announcement on January 23 (again, easily searchable on the GOG forum I mentioned and Atari's official subreddit), stated that the studio's own development tools, don't allow for this content to be efficiently replatformed to GOG and VCS.

There could be some credence in this statement, at least in regards to Digital Eclipse's previous approach in repackaging the Disney Collection on GOG, where, instead of adding the additional game, that Steam users got as an update (?), Digital Eclipse replaced the original collection with the full version that Steam users have.

Which begs the question, why not re-release Atari 50 on GOG as the 'Expanded Edition'?
Again, this could be related to my previous theories.

Last point: if we look at the' holiday update' Atari released on Dec 5 2023, where DE dded 12 new games, this update involved a 12GB (?) install. Essentially, downloading the entire game again, for games and their high resolution covers, taking up MBs.
Of course, this is an inefficient delivery model. I believe this same update method was on the Steam version.
This model of delivery, is developer dependent.

This update method, as well as the previously mentioned Disney Collection repackaging approach, may be indicative of Digital Eclipse's proprietary development tools.

For everyone else: search Atari's statement on their VCS subreddit.

If other users on here can't find the official Atari announcement, then of course I will send this.

If one reads my posts, though they are rather lengthy, a goal of mine is to help raise awareness of the endemic issues I have mentioned regarding longing standing update issues on GOG, and part of my drive - which, concerns all of us, as consumers, is to encourage a proactive approach in researching pertinent information.

Unfortunately, some users seem to simply expect information handed to them on a silver platter - and when, instead, a proactive approach is suggested, they seem offended by this, to the extent of outright dismissal of the relevant channels I tried to provide. For example, implying that I suggested to 'blindly trust ' Reddit. How can you 'blindly' trust Atari's official subreddit? Unless this user was unaware of Atari having their own subreddit in the first place. Again, awareness, or lack of.

Unfortunately, when these requests - for easily obtainable information - are not acceded to, the forum posting etiquette card is waved, repeatedly.
Again, context is key to understanding meaning, and my post regarding Atari's announcement, wasn't me 'claiming news' - this is not 'news'. This announcement has been in the public domain an entire month since this forum was created by this very user.
The point to my post, was rather, quoting my message to GOG Support, in detailing a possible solution to the issue of missing DLC.

Again, I have made significant contributions to this and the 'Wider World of Atari' forum and I hope to continue to do so.