Greg. Thanks for your reply.
I may have mischaracterized Bond sightly. He didn’t use the word “blow”. At 35:40 he says “don’t use any more air than you would to sing”. In fact, on an additional listening to Bond’s interview, he mentioned that the idea of ‘playing like singing’ originally came to him through Jim Pandolfi, also of the Met. Pandolfi explains it well in a Brass Chats interview: