Because the packs include energy, they allow Android users in the US to get tickets for GLs faster. Which, I can tell you as an iOS user in Canada, is annoying! Do I want to have to wait an extra week to unlock JML? No. Is it the end of the world? Also no.
It's not fair, but that's the way it is, and unless Apple changes its rules and/or Google Play Points expand to other countries, there's nothing anyone can do about it. Except that CG could withdraw the packs, which I do not expect them to do, and would not ask them to do (since this is a policy beyond their control).