They do care, hence bootcamp, why would they knowingly close off a large market segment that's buying Macs at this stage. I use windows and need it for my work, without an optical drive, and inability to install windows, I'd not buy any more macs (And yes I still buy macs even though I built a hackintosh).
That is a great example because you either have to buy an optical drive or share one, proof positive that optical drives are still needed. They may not be needed on a daily basis but the need is still there.