As the parliamentary secretary says, the main objective of Bill C-36 is to reduce the prevalence of prostitution with a view to ultimately abolishing it to the greatest extent possible. In no way does Bill C-36 seek to facilitate, allow, or condone prostitution.
It doesn't criminalize the sale, that's true. There's no specific provision that criminalizes the sale. You have been reviewing the provision that criminalizes the purchase. The blanket criminalization of purchasing sexual services is consistent with the main objective of the bill, which is to reduce the prevalence of prostitution.
Back to my first point where Bill C-36 doesn't intend to facilitate prostitution. It's not allowing the sale by failing to criminalize it, it's immunizing the person who sells from prosecution for any part that they may play in any of the prostitution offences.