my understanding is that it is cut from the original tapes... however, there seems to be some question as to whether or not there is a digital step in the (ampex?) tape machine used in the cutting process.
given the mofi debacle, i did some more online research into this release of tommy: in a 2017 interview with miles showell, the mastering engineer for this LP and other abbey road half-speed masterings, he described the process used:
"... So I always prefer to capture, very high resolution digital. I’ll do a vinyl specific transfer, so I’ll be capturing it to the workstation as if I was cutting it. No massive compression, to reduce the dynamic range, no crazy limiting which is what you put on a CD to make a CD sound loud. So I do a transfer which is clean, fix any problems and run that at half-speed into the cutting lathe...”
so, it appears this pressing is in all liklihood ADA as indicated upthread by @j3brow.
as in the case with mofi, the marketing material is ambiguous/silent on the issue and the casual consumer would just assume it to be AAA. i certainly was not aware of the digital step when purchasing this LP.