There are now enough good dinosaurs in Magic that you can easily run dinosaurs as a typal group, and you have a few commanders to choose from to do so
Selfish, but the fact that you can use it multiple times per turn makes it potentially very powerful, especially given Helitrooper packs built-in evasion
I still feel like the Theros Prerelease was a couple of years ago, instead of the better part of a decade, and I still feel like the same person I was in 2010 or 2016, even though all the circumstances of my life have changed completely
You can't wait and play them later
Plus, if it dies, you get to make a lot of Treasure, even helping you cast the next one at a larger size
Its in the eyes of the beholder, but Avalanche of Sector 7 is definitely going to terrorize the local artifact player who is still thankful that Dockside Extortionist is banned