1. No, but I don't have to factor those VPs into the crashes, and it makes our mod more universal, as long as a build has the requires sexps and features, it'll run the mod. The media vps are more limited with that, new ones don't work right with older builds which our mods would work on.
2. Our stuff is standalone and near a total conversion, it doesn't matter what other FS2 campaigns use, as I really don't care what they do use. The attitute of 'you must use this because everyone else has to use it' is silly IMO. If I want to use different stuff then I will do so.