If they're two dialects of Cherokee, for sure. Otherwise I don't see the point.
Well, they are different dialects, but the same thing could be said of British English, New Jersey English, Mid West US English, Australian English, etc, etc. So I'm not exactly sure what you mean by "dialects".
Keetoowah is quite different to Western Cherokee, and I've seen Eastern Cherokee pages on the internet that are just plain odd. Such as the people who are translating Facebook into Eastern have "ugilvkwdi" for "Like" or "like this" (I haven't used the English translated facebook in quite a while so I don't remember what it is), where as in my dialect I would say "agilvkwdi".
Not to mention that even within the Western dialect there are many variations.
Eh, I'm too tired to think. Anyway, it's up to you guys. Not a big problem if you do or not. Just something I was thinking about.