Sorry, I think that is rubbish. The car manufacturer determines the recommended pressure , not the tyre manufacturer. The only exception maybe a tyre specifically designed & manufactured for a specific vehicle ?
A tyre of a particular size and rating Is often suitable for many different cars but the recommended pressure could be different for each vehicle type, mainly relative to axle weight and determined by the vehicle manufacturer.
The only pressure rating on my tyres (on all my cars) is a max pressure e.g. 44 psi on my Crossfire rear tyres, no minimum or range. The other spec is maximum weight.
Although not specified in the Crossfire owners handbook , the tyre pressures for my 2 other cars in their handbooks has recommended pressures for different tyre sizes, not tyre manufacturers.
Mick