Ken, in October 1827 Campbell replied to an earlier letter Stone had written to him in the CB:
BROTHER STONE,--I WILL call you brother because you once told me that you could conscientiously and devoutly pray to the Lord Jesus Christ as though there was no other God in the universe than he. I then asked you of what import and consequence was all the long controversy you had waged with the Calvinists on the trinitarian questions. They did practically no more than pray to Jesus; and you could consistently and conscientiously do no less. Theoretically you differed, but practically you agreed. I think you told me that you were forced into this controversy, and that you regretted it. Some weak heads amongst my Baptist brethren have been scandalized at me because I called you brother Stone. (Emphasis mine)
And its waaay too easy, not to mention naive and simplistic, to blame the 1906 split solely or primarily on the Disciples, as if the Churches of Christ had nothing to do with it. There were many contributing causes to the split, not solely or even primarily the "liberalism" of the Stone churches-which had ceased to exist for all practical purposes by 1906 anyway. But guess who those "liberal" Disciples in 1906 most closely identified with? Campbell! Stone by that time had been mostly ignored or forgotten by Disciples historians, and would continue to be for the most part. I attended our local Great Communion last year and the local Christian Church minister gave the opening address, and while mentionining Campbell several times, never once referred to Stone. It was a Church of Christ minister who referred to Stone! It was Prof. Garrett who with his The Stone-Campbell Movement restored Stone to his rightful place as one of our founders.
Revisionist history would be to ignore or remove Stone from our history. Like him or not, he's a part of us. You can trace strains of his theology up through Lipscomb, Harding, Brewer, etc. For example, the CoC's largely counter-cultural, pacifist stance up through WWI can be traced primarily back to Stone.