Worse, a flipped Erayo does not always send a strong signal to newer players that the game is essentially over
Loxi: Whew, this has the potential to ramp you a lot if you play enough creatures to make sure you can attack reliably with this
You touch on it in your last point, that there are different cases of feel-bad: board wipes, lockdown/hand hate and random luck/cascades are all different causes, but the biggest common factor in feeling bad is that you lose
In theory, you can also dip into +1/+1 counter strategies to buff your creature tokens, then copy those using Populate, further increasing those lifegains
You can find extra +1/+1 counter lands to spice up your mana base, like Oran-Rief, the Vastwood or Tyrite Sanctum