Page 888 - Rescue Range

…Are those five Derpys in panel 2?

Were all the conspicuous absences of her as a background character in season 3 and the first part of season 4 actually just her going back in time and appearing extra times in the previous seasons?

(It might be late and I might be very tired as I write this.)

Applejack: There’s GOTTA be a clamorin’ outside now. Rainbow Dash HAS to hear it.
DM: <sigh> Yes. But she’s very far behind.
Rainbow Dash: I… spring into action and try to save them? Rarity AND the Wonderbolts?
DM: And meanwhile, I’m gonna be rolling saving throws to see if the Wonderbolts wake up. So, y’know, Rarity doesn’t die. I’m gonna level with ya. You’ve got one chance to reach Rarity in time with a skill challenge… and even with your Athletics skills, the odds aren’t great. You’d need, like, two or three consecutive Natural 20s to do this.
Rainbow Dash: <roll> …plus 14, that’s… Hey, at least I got a 31!
DM: Is it a Natural 20?
Rainbow Dash: Well, obviously not…
DM: Then I don’t know what to tell you other than, “Roll again.”