(For example, I doubt I would put reach on the green creature in the cycle above.) But Rules Manager Mark Gottlieb realized that keywording it would solve a long-standing problem about who can block what (Creatures that can block fliers versus creatures that can only be blocked as if they were fliers)
Now, I do think that Fall of Cair Andros is the best of the Amass cards in the set
This card is different both in characteristics and visually
For 7 mana, you can exile a target nonland permanent and flip her into Hydaelyn, the Mothercrystal, a god-level creature that hands out a +1/+1 counter at the start of combat and makes the buffed creature indestructible
And it's nice to get in a hit with Watchwolf and untap it
It is a staple in many competitive decks, and pretty awesome that such a powerful card is included in a starter deck