Every Rising event has something to it.

We've seen Yoshi P reveal His interest of Red Mage vs Blue Mage and his ideas of getting into Stormblood after Heavensward was released.

We've seen Yoshi P talk about the seas in the play.

This time, we seen Yoshi P encounter us in the light of the Crystal surrounded by four red knights.

...Why red knights? Why the bugs in the weird cheap maze? What Easter eggs, if any, were in this expansion?

This one admittedly was either not filled with much, or very unclear. It's actually a little disappointing that it wasn't as evident as the last few, but still worthy to discuss why these red knights were there and what he said.