Is there anything really wrong with this? I mean 2 businesses deciding they have a mutual understanding of when to release a product...
If I recall correctly, PvZ was originally an iPhone title, then became popular, other platforms, etc. Maybe Apple just wanted to also ensure that PvZ 2 was an iPhone only title for a while as well.
For anyone else interested: http://en.wikipedia.org/wiki/Plants_vs._Zombies