well, I would have said he was "wrong", at least as it leads to acceptance of authority only. Take the intro course on BIology by Campbell, it opens with a discussion of emergence not transitionals as fact. This is a tragedy for the new student so let me go back to an earlier time. Darwin thought that transitionals would approve his view of modified DESCENT and let me take this as if true, as bird/reptile fossil with feathers as not a fraud etc etc. What seems to support the sense of the authority whether in the philosophy of biology of organcism or the "fact" of evolution, I dont understand how the existence of any one or a number of transitionals leads the popular mind to think that the rates of change are thereby validated!
What i dont get is how from a the approval of SOME fossil as accepted by professional evolutionists the people think this gave liscene to think that the forms are malleable to any arbitrary extent but Darwin knew this was a matter of systmatics and why he studied Baranacles. Some how it is wrong to understand change willy nilly on the existence of a fossil or so but common mind can not find mental space generally to seperate change from any change and simply assert evolution as a particular change that I can not find to exist.