I do like that we seem to have hit a point now where every version of the Cybermen can run together concurrently like some weird, evolutionary train, rather than the Daleks where it feels like the newest one is taken as default.
I also didn't notice until someone pointed it out, but I love that Ashad has a Mondasian Cyberman's arm as if he was a total rush job.
I do think it makes a lot of sense for them as a race, honestly. And it was the natural conclusion of what RTD did - once we had the alt-universe Cybermen entering 'our' universe, the natural conclusion that Moffat than took it to was that they would eventually hook up with the Mondasian Cybermen and intermingle. But also, Cybermen are technological, so it makes sense in the same sort of way there are PCs running Windows 7, Windows 10, hell, there's still PCs running Windows XP in enterprise. It's a weird analogy, but the Cybermen are
like that. It makes a lot of sense.
The Daleks, meanwhile, are all about that purity, so it never really made much sense to me seeing the old and new models together on New Skaro in series 9. Like, surely in their search for perfection and purity they'd just rip the Dalek out of the old shells and put them into the newest, most improved ones. In fact, this was demonstrated in a sense by the Daleks in Series 5 exterminating the 'inferior' older models. Aside from a small handful of 'officer class' Daleks of a different design, ala Sec or the Supreme Dalek, or models with specialist weapons, it never made sense to me they would all be anything but identical. Whereas with the Cybermen it totally makes sense, and it was probably my favourite bit about the end of Series 10, seeing them all together.
