Well, I don't think the term Aiki is trademarked anywhere, so I guess anyone can slap it on as a label to describe whatever they want. So to differentiate between the various uses of the term, I think we need to add clarification to the term - such as something like the internal Aiki of Ueshiba M and Takeda, or the external Aiki of Ueshiba K and the rest of the Aikikai. Once the differences are understood and agreed upon as differences, then folks can go check it all out and decide for themselves which path of Aiki they wish to follow. But without an objective understanding and hands on experience with both, no one should be making statements that one way is or is not the true Aiki. Dan, Chris, and I have obvious experience (at various levels, of course) with both and have chosen the internal way of Takeda's and Ueshiba M, Aiki.
As they say, YMMV