Why do the /dub and /sub command line parameters need paths?

[Rekrullurker]

If you type

MPC-BE.exe Test.mp4

It will look in the current directory for "Test.mp4", and play it.

However, if you type;

MPC-BE.exe Test.mp4 /sub SomeSubs.srt

It doesn't load the subs, even if they're in the same directory. You need to type something like;

MPC-BE.exe Test.mp4 /sub E:\Stuff\Crap\Videos\Newest\SomeSubs.srt

It won't even accept .\ as a placeholder for the current directory;

MPC-BE.exe Test.mp4 /sub .\SomeSubs.srt

Which works in pretty much every other situation.

The same is true of /dub.

I'm wondering why those two command line parameters can't just check the current directory if no path is specified. Why do they absolutely REQUIRE a path to be included?