Now we know that fans were almost treated to the MCU debut of the Skrulls years earlier in Guardians of the Galaxy.
It’s true that adding a Skrull to the Ravagers isn’t as simple as adding a Centaurian like Yondu to the Ravagers.
A Skrull is not just another alien, and would involve much more exposition.
Gunn says that there’s “an elegance in the simplicity” of the Guardians of the Galaxy movies that can easily become too complex if too many elements are included.