That's a different issue, Ben....
The issue is not isolated to PLAY - all plugins load their data twice in Vienna Ensemble Pro since build 8008 I believe. At least I know it happens with Kontakt 4 + PLAY on PC. It doesn't result in greater memory usage, it is just annoying as a template with a lot of PLAY patches will take 50-100% longer to load than it should (if you have "background loading" turned on in Kontakt, it won't load the samples twice). I believe they (VSL) are looking in to it for the next build.