That's correct.
The issue is the word “object”, in both section 151 and section 153, because you need to interpret the dog as an object, which isn't really consistent with the way the law is evolving. Then, there are issues with some of the other provisions, such as corrupting children, in section 172. You need the offence to have occurred in the child's home, and you need the Attorney General's consent, both of which might not apply in a particular circumstance. For the offence of indecent acts, the indecent act has to occur in a public place, and has to be with the intent to insult or offend. For indecent exposure, the person's genitals have to be exposed, in addition to whatever is happening with the animal.
The other one, which the Supreme Court of Canada had not raised, but that we raised in our paper, was the use of section 272, which would be sexual assault with a weapon. In that instance, the animal would have to be qualified as a weapon.