Yes, I would. That's base Speed, and 110 base Speed is astounding, even in-game where it doesn't matter as much. Blush Mountain is only an electrical field in USUM, and you're playing SM. You have to wait until Vast Poni Canyon to evolve Charjabug in SM. Pichu may have a 5% encounter rate, but it can be found in two of the earliest places you access, practically invalidating that.
In short, I stand by my reasoning.