Aside from the beat rate, what you've described there could equally apply to all genres of dance music. Almost every track follows the same rules phrasing and has a 4/4 time signature (often with really accented four-to-the-floor kicks or percussion). The predictable buildups and breakdowns are a feature: most people can't dance to something they can't follow. Just look at how differently people dance to IDM (it's not uncommon to see a mosh pit at some gigs). That said, even IDM has a good few tracks with a predictable phrasings to them too.
Sure, some genres are more predictable than others (hardhouse, for example, is effectively the "painting by numbers" equivalent of EDM) but as a retired DJ who used to mix on 3+ decks and throw in the odd non 4/4 track too (typically 3/4 but I had some more esoteric records too), I can't think of many tracks from many genres that were particularly hard to DJ.
...well there was this one track that was difficult, not because of the phrasing nor time signature, but because the producer decided to fade in the start of the track. Very unhelpful that!
What I've written here also applies to a significant amount of rock and it's various sub-genres too.
As for the "FX friendly on the mixer", that's been technos style since the 90s. It's nothing new and certainly not anything specific to Drumcode. Richie Hawtin even released a compilation album called "Decks, EFX & 909" in 1999 and his style is very different to Adam Beyer's. In the early 00s Misstress Barbara wrote in a cover sleeve on one of her mixes about how her sets were about creating new compositions live using 3 decks, heavy EQing and effects. Her style also differed massively from Drumcode.
Source: retired DJ and producer. Not a household name but played a few gigs in and around London. Mostly techno but with house, electro, breaks, EBM, rock, metal, industrial and pretty much anything else thrown in that had the right vibe to it.