Yes, the overall algorithm will do something much more precise and comprehensive, so it's not like this scoring function needs to be perfect. Still, it matters in a quick evaluation so I'm surprised it isn't in there.

A few examples come to mind where, for instance, white has a bishop and knight attacking f7 and it's black to move. If black castles nothing interesting happens and white is likely overextended. But if black cannot castle white will win a rook.

I can make up a similar situation with en passant, and this does come up, but a lot less frequently.

So anyway, surprised you wouldn't toss a few bits in there, at least the 2 for ability to castle by each player.