HPE also inherited HP's research labs, which Dell never quite had anything similar too, and medical division where they make a lot of very important medical/hospital devices.
ETA: HP at one point was much more similar to GE than Dell, and HPE is all the "fun" stuff that wasn't Dell-like. (The Dell like side is what got spun off into "new" HP.)
Last I tried to read one of those PR articles (probably posted here to HN), it sounded like memristors still exist as active research, even though that was supposed to be the gamechanging basis of The Machine, but they are The Machine branding software projects now and non-memristor product tech that is kind of memristor-esque.
But again, that's merely my mostly hearsay-informed, lay readings of tea leaves.
(It's starting to feel a bit like IBM's Watson where the "brand" The Machine has multiple meanings depending on which team/marketer/sales-person/researcher you are talking to.)
[1]: https://seekingalpha.com/article/4104846-dell-technologies-d...