It seems like a no-brainer to me
Since then the deck has only changed in terms of ratios and which tech cards are used to adapt to the meta
Personally, I have loved the sub-optimal but wonderfully silly practice of stalling forever with Snorlax or Jigglypuff while slowly accumulating mixed energy onto Dragonite, twizzling my evil moustache as I go, succeeding probably less than half the time
While Expressive Iteration technically only replaces itself as far as cards in hand are concerned, it's the perfect spell to drop on turn three in a land-light hand, in order to make your land drop for turn and set yourself up for turn four as well
I'm not going to go through every single change to the B&R list in every single format
However, the power of Growth Spiral lies in the fact that it doesn't require you to tap out to play an additional land, meaning you can keep countermagic up and still ramp