I saw like 4 people replacing their tires
I was one of them
It wasn't even a proper pinchazo, just runaway gas
One chicane I suddenly almost chute because rear wheel is almost empty. But it's not full flat. I pump it to somewhat full and ride like 2-3 more km and it's again a little empty. Then again in 500 meters.
I replace the tube and ride home.
Also I was too lazy to replace the pump so couldn't test the Lazyne one

Maybe the rear tire ran its course? After barely 4000 km? Maybe the mileage is lower on the belgian roads of ours.