That includes all the techniques too, right? I'm wondering if something's wrong with the techniques, or if they're actually less likely than regular imprints, or if I'm just very very unlucky. I double-checked an earlier save, and at one point around Core 5, I had 30 imprints and 2 of them were techniques, which is perfectly reasonable and maybe even a bit good at a base rate of 1/20. Now while I'm systematically getting relics, I've reached 120 imprints, so 90 more since then, without a single additional technique.
At a rate of 1/20 or 95% chance to not get a technique each time, getting 90 regular imprints in a row has a chance of .95^90, which is less than a 1% chance! And it's actually worse than that because as imprints accumulate, the chance of not getting the technique out of just the remaining imprints for a particular region goes down. I have a couple regions with 7 imprints, and the chance of not getting a technique after 7 imprints in the same region is only 20%, compared to a base 70% for 7 random imprints from different regions. So what's going on with the techniques?
(Now that I've calculated the odds and made a whole comment about it, I'll probably start getting techniques again soon? But I wouldn't have done it if the odds weren't seriously ridiculous by this point, unless there's something I don't know that's affecting them.)