Seeing as how the Wallace & Gromit episodes have all been separated, it seems pretty weird and inconsistent that the three S&M seasons, as well as Tales of Monkey Island, remain as a single entity.

Unbundling still in progress or what yo?

It doesn't look like it's part of the original unbundling list. Maybe 3 seasons worth of episodes would have made too much clutter?

They claimed it had to be done for Galaxy, so why then do these episodic games not need to be? The S&M episodes were originally sold separately, and leaving these as they are completely invalidates GOG's reasoning for unbundling in the first place.

I guess they unbundled because Galaxy itself can't launch different games from a single game card, but they made the episodes work with it by adding a separate launcher to select which episode. When they unbundled Grimm, they only separated it into seasons instead of episodes, as well.

However it still doesn't make sense that they unbundled Wallace & Gromit like that.

Gog works in mysterious ways.