No. I don't think is has the same effect outside of Webkit. Only webkit is fooled as far as I know.
I recommend unchecking 'position with CSS left/top' in the document inspector for your document. Also, can you see if the Z rotation trick has any performance impact for you? The email field is interfering with testing so I can't really see what affect this has.
This thread has more tricks Scaling a *huge* SVG by a *large* number = blurring / stuttering - GSAP - GreenSock