You're performing two unique operations.

I don't exactly agree. When I remove songs using tweak order, I don't know why the original list of songs would even be preserved. Sort/unsort is currently constrained by the playlist, why shouldn't the "new" tweaked list constrain it as well?

As for country - sometimes I like it, but I handle this by "exclude as child" on a folder with country. I just have some strays in a Singles playlist. Sometimes I'm just not in the mood!