They are not - I just checked, and it has that exact flag. Weird.
Thanks for the advice on tweaking the MAPINFO, also
The arsenal-reset between episodes/Master Levels is slightly bugged with the Samsara mod - it resets ammo, but not weapons (so you end up with 50 Bullets/Mini-Zorch/Blue Mana/whatever, but all the weapons you've accumulated). Also, is it possible to have an alternate version that removes the arsenal reset entirely?
Slightly disappointed theres no gags if you try to run it alongside Brutal Doom, like HDoom has
Less goof: any plans for Heretic/Chex Quest/etc compatibility down the line? Obviously it would be a later development, but could be fun.