What are you talking about. I own a blu ray burner for my mba. I still need to use. Cd and DVDs once in a while as well. The bd format has not failed and we have seen it continue to mature and now there is going to be 4K bd. Normal bd movies have been out for about 10 years now and sales keep growing on bd format.I know people are going to be angry about this... But like it or not, this has to happen sooner or later, and there is never really going to be a better time than now - waiting won't make it any easier. The 3.5mm jack takes up a significant amount of space, and on a small device, that space matters. Keeping the headphone jack is just delaying the inevitable.
This reminds me of when people were slamming Apple for not adding Blu-Ray to Mac. Steve asserted that streaming was the future, and look now... who really wants a blu-ray drive? Yes, it sucked for a couple of years while we transition to newer technology, but there's not way around that. The headphone issue is really the same philosophy - simpler products, wireless when possible. I have no doubt that after couple of years (which may include some transition pains), people will fully support moving on from the legacy 3.5mm jack.
The only reasons Steve didn't go for it was due to the format wars AND that is was proprietary and not Apple so they had to pay. Another thing was space. By making a drive a separate thing that you can buy to use when needed then computers became muchhh thinner.
Btw Windows added support for bd and Apple nada. If people were not suing it then Windows wouldn't pay since most machines are Windows.