Are they ACTUALLY even really princesses to begin with? Who voted THEM into royalty?! They don't even have a horn to come with their wings to call themselves princesses!
Their peggy subjects tried to incarcerate them, for crying out loud! Right after finding out they lack flight like the rest of the commoners! But as soon as magic comes back online, EVERYPONY now feels SO hunky-dorey and ALL is forgiven! All of THAT makes me SICK!
If I was a proper peggy Princess, I would've just purge the dissenters right underneath my horseshoes—-right after disposing my rival sibling, of course….