That’s a typo on our part, it’s easy to get careless with all of these songs with “the” in the names.
These days, Jonny only uses his Boss DD-200 for The Opposite. He did use the RE-20 (with no reverb) for the Glastonbury performance of The Opposite in 2021. But so far this year, it seems like he’s only used the DD-200 for The Opposite.
We meant to say that Jonny used his Boss RE-20 on The Smoke. In fan footage of the tune, you can clearly hear when he kicks on the RE-20’s bright reverb.
For those curious, this is the (now corrected) post referred to in the question. If you’re not familiar with these pedals, just know that the RE-20 offers a simple warm delay sound with an optional reverb. The DD-200 has a variety of delay sounds, but no reverb, and Jonny uses it for crisp digital repeats.

Jonny about to stomp on his RE-20 during The Smoke at The Smile’s first Magazine show. For that song, he activates the pedal briefly for high notes, but de-activates it again before playing any low notes. This allows that high notes to stand out gives them sustain, while preventing the low notes from sounding muddy.