I don't know why she proposed something like this. In my opinion, these statements are not really partisan, unless the whips issue a directive to all MPs to declare or not declare that they attended certain events, or anything else.
If the basic amount for declarations is $500, in my opinion, there would be no partisan component because the amount is normally obvious and everyone must declare that. It's possible that one party realizes the value of a gift and another hasn't understood it. That could seem a bit partisan, but if that's the case, there would need to be an indication that everyone else must file the same declaration, because they have received the same gift.