I both agree with all these, and disagree with all these simultaneously!
Any degree of acid to the tech, and you have either a bassline or melody.
Any chords and as long as they aren’t piano samples, you have dubish-tech.
Granted, introducing these to the techno, can be a bit risky. Though all of them have been used to great effect by even the techiest of the techno-folk of the techtroid dimension.
Jeff Mills 4 Art?
Side story about 4 Art… Was at a party early-mid 90s. Oscar Mulero was playing this track as some unfortunate young lady became overwhelmed by her acid. He had to stop the track, get on the mic to ask whoever brought her to take her home or to a hospital. As soon as that happened, this track spun back up, while a tiger-bouncey-house started deflating in the back of the venue. Apparently it got popped while this was occurring.
Made for a very surreal experience. Definitely was concerned for that girl, but that whole set of events was rather interesting at the time. Excellent set!