1) There are cameras with pretty bad resolution displays (77kdots, 84kdots, 115kdots). The default 8x16 Latin fonts are mostly readable, except for example when one has to distinguish between a capital "B", "8" and "0" - depending on the character's position and the colors.

2) Cyrillic is worse, some letters don't fit into 8x16 well

3) Using bigger RBF font on the same display:

Above screenshots are from a 84kdots display.
Additionally, not having better resolution fonts on high resolution displays may look ridiculous to some people.
So, I'd vote for keeping RBF.