The lower cup would raise the front end some, but making the frame slacker via changing the steerer tube angle lowers it. I think BB height and seat tube angle are probably about a wash depending on what length fork you're working with and what kit you get. Since there's cups above and below I'm sure the stack ends up slightly higher, and with the steering axis change reaches gets shorter like basically every angle set.
In my case I run my hardtail as a mullet which slackens the bike out about 2 degrees which is helpful on the shore.
My intent is to use the angle kit to slacken it just under two degrees and then I can try a 29er wheel on the back, which will raose the rear of the bike so net difference in head tube angle is roughly nothing.
So since I'm doing the angle set in combination with a larger rear wheel I will have higher BB, steeper seat tube, slightly more reach, same head angle. I don't know if that will be a net positive but it's a fun experiment. I suspect the BB might feel too high actually.