Mods are actually very nerfed

"Lightsabermon;c-1634660" wrote:
Situation - You have a green mod with a speed secondary at level 1.

Before the changes:

Upgrade to level 3 - you upgrade your speed stats 100% of the time AND get a 2nd secondary
Upgrade to level 6 - you have a 50% chance to upgrade your speed secondary AND get a 3rd secondary
Upgrade to level 9 - you have a 33% chance to upgrade your speed secondary AND get a 4th secondary
Upgrade to level 12 - you have a 25% chance to upgrade your speed secondary

Because this guy had this mod from before the changes, he has a total of 4 (!) upgrades on a gray mod - see how it says (4) (2) (1) (1). Now every level 15 gray mod is (1) (1) (1) (1).

I see why you think this was a nerf, but it's based on a misconception. This is how it worked before the changes:
Upgrade to level 3 - Visible secondary stat increased
Upgrade to level 6 - 2nd secondary stat appears. No secondary stat increases
Upgrade to level 9 - 3rd secondary stat appears. No secondary stat increases
Upgrade to level 12 - 4th secondary stat appears. No secondary stat increases

For reference that this is how it worked, I'll point to https://gaming-fans.com/swgoh-101/swgoh-101-comprehensive-mod-guide/swgoh-101-mod-guide-colorsqualities/
The update rearranged the above so secondary stats appeared first, then you get the stat increases. This method has its advantages and disadvantages.

Every level 15 gray mod is (1) (1) (1) (1), check your own mods that you have. That picture isn't showing a gray mod, it's showing a 6-E mod, which you can only obtain by slicing a 5-A mod to upgrade it. Yeah, it's pretty confusing that 6-E isn't a higher dot E type mod (grays) but is instead a higher dot, improved in every way A type (gold). They're obviously intending to add another 4 levels on top of the 6-E in the future.