I need to do a bunch of LAX-DEL/CCU flights and am considering SQ as an option. Is it true that I will need to fly United to get 1P bonus miles?

http://www.united.com/page/article/0,6722,1165,00.html

I am trying to choose between CX and SQ - with 5+ RTs planned for the next four months, lack of bonus mileeage on SQ could be a huge difference that sends me off to OW (with CX where I get full credit - both bonus miles and elite points).