What rubbish! PA is a non-partisan organization. PA works with the elected government of the day. If WP is elected, PA will also work with them.
PA works on government national programs, which includes giving out of the SG50 funpacks. So, why should the opposition be involved when they are not considered part of the government? They are also there to ask questions and talk cock in parliament, while the day-to-day running of the country and its policies are decided only by the ruling party?
Besides, if you look at your SG50 funpack, there are no PAP logos anywhere. Can you say the same for WP grassroots' movement, where their party logos are prominently displayed? PA's grassroots is way more neutral than WP's grassroots.