I think it works as it is, because few people are going to want to select their pet with stats in mind until a re-run. If there is to be any change, it might be from mentioning the pet skill gain the first time the skills screen is reached, during the explanation of the skills. It's the first time the player will need to take the pet skills information into account. A first-time player is unlikely to reset simply because the skills were not as expected (especially since experienced players can check the skills on selecting the pet if they're looking for that information).