Abyssal Depths chance large increase?

I'll preface this by making clear that I don't have enough data to be certain about specific numbers, so it would help if others would chime in. I have run enough of them to be pretty sure about the general trend, though. Also, it is possible that this happened during 3.19, since my experience was up to 3.18... I didn't play much in 3.19.

My experience in 3.20, thus far, indicates that the chance for an Abyssal Depths to spawn during an Abyss run has been increased hugely. I seem to be getting at or around 40-50% Abyssal Depths instead of sequential nodes with Troves... Even if it is not so high, anecdotally it still seems much more likely than it did before.

I have a few comments about this:

First, if this change was in fact made, why not document it somewhere? I see this as a large nerf to Abysses, since I have very little / occasional (specific) interest in Abyssal Depths. Why buff Abyss with the left hand (great new Abyss passives for sequential nodes on the Atlas Tree) and nerf it with the right (forcing the waste of a large number of Abysses with unwanted Abyssal Depths spawns)?

Second, the option already exists, on the Atlas Tree, to increase the possibility of Abyssal Depths spawns..So those that want Depths have the option to increase their availability. As a general comment, if the intention was not a considerable nerf to Abysses, please consider re-lowering the base possibility for them to spawn, because for those who do not want to use them, they are a complete waste...Most of the new bonuses of the Abyss investment on the tree apply to sequential node spawns and are undermined completely by the Depths spawn. At least, please lower it considerably from where it has been set.

Third, relating to the above, an option exists on the tree to increase Depths spawns. As a suggestion, since the tree exists to tailor one's experience, with or without a reduction to base Depths spawn rate, please include (an) option(s) to reduce Depths spawns considerably. Each appearance of the orange door on the overhead map is a disappointment for those who do not want to enter the Depths.

Finally, if I am simply mistaken and this is very unlikely RNG combined with the same base Depths spawn rate (I highly doubt it)... great.