PCs have been without an optical drive for years before Apple did it. I had a laptop with no optical drive nine years ago and I'm sure it wasn't original then. Granted, the experience was so poor I vowed never to live withot a built-in optical drive again.
But the time has come. In fact it might be a year or two overdue to be controversial. Now that booting from a USB flash drive is broadly supported my personal need for removable media is satisfied with just a USB port and a thumb drive. Burning a DVD to share files or boot to a rescue disk seems old fashioned and unncecessary. I don't even know where my box of recordable disks is anymore.