It's for clarity to the audience - the audience who haven't realized that yet. okay we're literally in the 12th special chapter (17th chapter total) and im guessing we all figured that out by now
Yes, that is a good detail. A good detail, yet a new one. I'm pretty sure this was first implemented in Let's Go Eevee!, but before Sword and Shield, this was unique to the Partner Eevee, while all other Eevees had identical tails.
i think people are saying about the whole because normally with some stuff they go other the past but it wont because PKM-150 still wants to do more chapters and special chapters and even said that lazuil and speed might start dating in chapter 6 or another chapter sooooo dont worry about it ending with this comic because it wont