This is part of the code.
The issue came up five years ago in the media. I think it is just an exception to the rules on gifts. The right to sponsored travel should be amended, if not eliminated. I understand that the problem is that members do not have a travel budget, but they think that doing some travelling is a good thing.
Actually, at least a rule on conflicts of interest could be added, but it would be a big exception for the rules on gifts.