VGA on a 4k IPS 43 inch display ... why ?
because sometimes you are working on a PC with issues, and having that legacy port is SUPER helpful. I never use VGA on a day-to-day basis, but when a friend brings me a broken rig, or when troubleshooting a PC at work, that VGA port almost always works even when everything else is dead.
Besides... why not?
Just for that particular case you mentioned I still don't see the usefullness of the VGA port since there are lots of VGA to DVI,HDMI,DP adapters. Besides, it is just one more reason for the manufacturers to throw at us devices with that antique port thus providing crappy resolutions while we are in the 400+ ppi screen era.
I would prefer a DP 1.3 port instead of that VGA. There are almost 2 years since the standard was approved and there are no DP 1.3 devices on the market.