This is NOT an EE’s issue. There’s nothing someone at RTCamp can do to solve a corrupted package at WordPress repository.
Until the kind people at Automattic create a new, functional, .tar.gz file, we have to deal with the issue with this workaround.
I suggested the pt_BR package because it is what suits my needs. But I remember en_UK also works. en_UK is not that different from en_US, and one always can change locale after WP is installed.
Please, don’t expect solutions from where it can’t come from. It might cause way too frustration.