Given the generally low mana-curve in Modern, cards exiled with the pirate monkey will usually be castable with the help of the Treasures and almost any card is worth playing as it simply generates card advantage
Because it is a board wipe it can cover that basis, but as it only covers creatures, and situationally at that
The average green commander deck will likely play a mix of 2mv and 3mv ramp, with maybe one or two more expensive ramp cards
It's a bit broader (being able to work on defense), a bit more combo-able (triggering ETB watchers), but more manual (requiring mana to use)
Secondly, you dont actually draw a card with Faldorn, you get a type of draw called impulse draw, which is definitely a nod to Act on Impulse
From cards no Limited deck would touch to key Draft and even Constructed players, healers in all their forms are well-represented across Magics history