Haven’t read much of his writings myself, but I think I can agree with those who say Boteach is little strange and a little off the beaten track but not across the line.
Personally I think it’s not fitting, but I understand why he did it and there is nothing wrong with it per se.
My personal opinion is that I couldn’t care less – I haven’t got a clue about who the guy was or is supposed to have been and I haven’t got the slightest clue about their religion, except that they believe he was born from a mother who was a virgin and they believe he died and returned and died again and will return again, something like that. I don’t need to know anything else… and actually that’s already too much.