TLA-itis there from IBM on that topic clearly.
My annoyance with this issue is that I don't care about those details -
just like say I don't care for a push-button handbrake as has ruined the new VW Passat, I want a handbrake I know how to use as from the year dot - a serial port, however it's managed/operating, is not rocket science or an HDMI high data rate cable, it should be labelled "S1" and run at 9600 BAUD !,
but no instead we have now have a rash of completely pointless and irritating 19200 BAUD with a severe case of acronytis.
I've got a history with this one... The new machines stopped coming with printed user manuals explaining the basics, the first ones I saw with the new vty0 "S1" I'm referring to, I could not immediately connect to with my laptop hyperterm. I asked the IBM rep could these then new p55A and p505 boxes work with a traditional serial cable - "NO" I was told repeatedly. In the end I worked it out myself that all you needed to do was enable the virtual TTY and use the new BAUD. And then the rep said "oh I told you, you could do that" - which she most definitely didn't !
Reliabilty, resilience and ultimately then performance, as in being able to do anything, relies on stuff like this. Making things simple, obvious and intuitive - not doing stupid and pointless things that are the opposite

Rant over. OK I can guess what you're going to say, it's because of the HMC and the "need" for a higher rate - guess what, not a fan of the whole HMC thing either
