No, you do not need to expand the rom for ShadowOne333's hack of the USA game. Make sure your checksums match the ones on the download page (the patch looks to be for a NO-INTRO rom).
Since I'm posting here anyway, I might as well state that this project is on pause for awhile. I've been very busy working with RedGuy on SC4ED. I've mainly been working on mapping out WRAM, but I've got some other things RedGuy is having me look into (checkpoints, level width location/calculations, adding additional events/camera locks, etc.) While I'm studying that, RedGuy is taking a break to program a new SC4 tool. I won't spoil what it is, but it should prove entertaining for those who have become bored of the existing challenges.