As a professional I encounter still too many VGA only projectors in clients offices, but HDMI is the dominating standard by far. So many people use TV in their conference room and that is not going to change any time soon. Getting rid of the HDMI port to save a few mm of thickness is just plain stupid.

I watched my boss buying a new MBP on day one. Months later I still laugh when I see him fiddling with adapters that never work reliably.