SBS BUS upper deck uncomfortable seat near window

My left (or right) sole is killing me. It's so uncomfortable resting your feet when you are seated near the window on the upper deck.

The reason is due to the uneven, and awkward surface/floor at the side of the upper deck (see pic). I would have preferred that the uneven surface could have been modified into elevated flat surface.

Fig shows the uneven flooring that is uncomfortable and awkward to rest your foot there.