Serial port over RJ-45

Hi,
what the reason to have serial port over RJ-45 on Cloud switches? AFAIK no standard defines that.
I’m going to buy combination Cloud Core Router (D-Sub serial connector) and Cloud Core Switch (RJ-45 serial connector) and will need two different console cables.

Serial port on RJ45 is quite popular on networking devices and the MikroTik port has the same pinout.
(the wellknown “Cisco Blue Cable” and also HP/Procurve/Aruba etc)
Every network engineer has a cable for that in his briefcase.

The CCR1009 instead has a DB-9 and I would have liked it to have RJ45 as well because the DB9 F-M
cable needed to connect that is becoming less common in offices. So if anything, I would like MikroTik
to exclusively use RJ45, not DB-9.