Witches Broom is Too Overpowered

I love all of the new stuff in the mini packs and the witches broom is probably my favorite (especially with doctor degrees fur) however I really really think it should be unavailable until after you finish the story of the world you are in and cost a pretty good price as making it immediately available breaks the cool exploration factor the game has. Also in MoN you can literally join and the immediately fly wherever without even having to burn the roots