if they use another magnification factor they will have to some how redesign the lens holder(case) panels size been the same this also mean more money for a real production run. And even then we will lose resolution because of the fixed panels design. If we reduce only the FOV the gain will not be enough to really compete new 2Kx2K headset on resolution you have to go for more optimization like the XTAL and this also mean more money
Best hope is to inform them that some of us want more resolution and less FOV (60% in my pool a month ago).
As @Frc pointed out it would actually be easier to keep the lenses and put in different panels with smaller footprint/higher PPI, if such panels exist.