I am very rarely in the green side bunkers but when I am I always flop.
Under some conditions, flop works well, but it depends on the lie and elevation and even different courses will have different results. One shot for all purposes is bad advice imo. Pitch and punch also work equally well - again horses for courses...learn what works for any particular hole/bunker etc.
To the OP. not everything is a bug, it is you never took the time to try and master your game.......one of the WGT are out to get me brigade.
However, I do find it easier to stop a ball from sand (depending on lie, elevation and gradient) in real golf than on here......but this is far removed from the real course.