We’ve had a few requests for this. We will add it in, just maxed out on The Showroom at the moment #14 . We disabled it as there are a few pages which can break while switching between landscape and portrait currently and we need to work out a solution for that.
In the meantime one of our users actually went back to using the PWA on their iPad pro specifically so they could still have the landscape view in the meantime.
I’ll update this here (and obviously in the App Store ) as soon as we get this done.