You can clip through 2 invisible walls with a Vengeance Infernal Strike.

This dungeon is only available on Heroic, which means I could only do 1 attempt a day. So the ending is a bit sloppy, but it is my best so far. Items used:

• Wearing: Onyx Amulet with Wind Sculpting Stone & Harmonic Music Stone, 3x Azerite Armor with the Longstrider trait, Scroll of Momentum, speed enchants
• Before entering: Fried Bonefish, Charged Phial of Alacrity
• During run: Quickwick Candlestick, Oddly-Shaped Horn (temporary mount), Nitro Boosts