Michael Gallagher wrote:
If that's what happened, maybe. I don't know. But then again, O Sensei called his art Aikido, not Daito-Ryu Aikijutusu. Calling it "Aikido," he was doing his own thing; you can't criticize him for that because it was his. But if he'd continued to call it "Daito-Ryu Aikijutusu" even though he was doing things differently from Takeda, that would not have been good.
1) He didn't call it "Aikido" until 1942, by which time the problems between him and Takeda had existed for years.
2) "Aikido" itself was, at the time, a general category within the Butokukai, and open for use as a name by just about anybody, which lends some strength to the argument for other people using the name for their art.
3) In the end, Tomiki changed the name anyway, calling his art "Shodokan Aikido", which pretty much follows the normal naming conventions of altering the root name by adding a modifier (ie, "Billy-ryu" student breaks off and forms "Billy-bob-ryu") to both indicate the change and recognize the root art.