stut welcome to the dark side
They're a bit pickier about comping from KL than from BA and they wouldn't do it for me - not least because it was obvious from my Flying Dutchman statements that I never fly paid C. You probably have more lucrative spending patterns than me and might have more luck. In my case, UA comped by to *G (Premier Executive) in the blink of an eye so I used the UA*G card (or my KL PE card) for a year to get into the lounges while I built up my status on BD. As it happens, I ended up keeping both UA and BD accounts in Gold.
Good luck!