I really love the episode. Especially Pegasmon part.
It's like Bandai and Toei wanted to tell the anime only fans, especially Adv 02, that armor evolution is not that rigid, the rule is not that exclusive.
Like, we know that Ponchomon is the Death Evolution of Togemon. At the same time, it can evolve from Patamon.
We know that Sagittarimon is the evolution of Centalmon. At the same time, it can evolve from V-mon.
We know that Gargomon is the purified Devidramon and at the same time it can evolve from V-mon.
The armor evolution rule is not that rigid or strict. Never was. The digimentals are just the method in certain in-universe lore. Just like tags, cards, etc.
One more thing I love about Pegasmon is that Pegasmon CAN be the connection to Adventure 02 reboot.