The ev doesn't exactly "come with" PyWright, it was a separate download. (I think it was in the art pack?) I haven't tested all of the ev items, so there may be issues. I expect that spaces in the name are not supported, so it's best to rename the file. I'll fix it in the pack too. Also, you'll be keeping most of the art content with your game, so it shouldn't interfere if someone has a different name in their folders. The only standard art you should rely upon being there is what was included with the full pywright download; not any of the extra packs.

Some people don't have bandwidth, so it's better for them to download individually only what they need (such as the items that show up on the updater). Also, it is highly unlikely you need all of the evidence. It might be easier to just download specifically the pieces of evidence you need as you need them. Finally, I think evidence should be more specific to the game you are creating, and it isn't too hard to draw new evidence items that are passable, so it's not so important to download them.

Anyway, that's my reasoning. Feel free to disagree! Maybe I should make a big version that has everything.