Basement bathroom -- acceptable wet vent to use wye into main sewer line?

I finished my basement and added a bathroom (sink + toilet) and a wet bar (sink). I am using a SaniPLUS system. My original plan was to (reluctantly) run an open air vent from the basement, up through the garage to the laundry room above and tie into the vent line running up through the attic to the roof. This would require ripping down drywall in garage walls, ceilings, and in the laundry room. However, while searching online, I came across a video on YouTube from TheSaniFlow Store where he clearly is using the main sewer line in the basement as the wet vent. Jump to 4:25 in this video to see it described very clearly. I was surprised at this interpretation of wet venting but would be perfect for me…

Wet vents are permitted in my jurisdiction as my house (built in 2015) employs them throughout. Can I avoid all of the drywall rip/tear/rebuild and tie the SaniPLUS vent in as a went vent as described in the image below? Vent would be red, waste would be blue — both wye’d into the main line adjacent to one another. Interestingly, the drain from the 2nd floor laundry is the existing wye shown in this image — not sure if that helps me in my wet vent strategy as well?