I use Shulker's Structures an The Far Landers mods. Shulker's Structures creates these large towers in jungle and roofed forest biomes and I noticed about 10 to 20 of them spawned in a graph shape almost exactly 300 blocks from each other in each direction. I thought it was just the mod itself but noticed the The Far Landers mod (which generates small houses) did the same exact thing for miles. So far villages haven't done

this they are just very common.

That is a bit too consistent, I'll have to look into this.

The tower's minimum separation from other towers is 0.75 times their maximum separation (which is set in the config), so I would expect them to be fairly consistent, but not this much. If I remember correctly, villages' minimum separation is 1/4 their maximum separation (8 and 32 chunks respectively, I believe). So I would expect villages to generate at less consistent intervals.

If I don't find any bugs in my code, I'll probably decrease the minimum separation and increase the maximum separation so it's not quite so rigid.

The towers are also generating much closer together than I originally intended, so that could be part of the problem. The smaller the maximum separation, the smaller the difference between the minimum and maximum separation will be