Hello and welcome to the forum,
This forces SMT to have expertise in DFSMS, DFHSM, ABARS, IODF, and general M/F operations features...
is responsible for supporting m/f storage has to understand how things work in this environment. . . There should be more than one person with this knowledge.
Over time, is the m/f volume expected to increase or go away?
How important is it to the business if there is insufficient knowledge to handle a m/f storage outage?
I believe there are many more questions to be asked/answered before saying one "group" should be used over the other.