I agree its small.
I just remember being incredibly disappointed a few years ago by the Rioter who said it would be cool if Horizon Focus amplified Vel'Koz true damage, and it clearly being approved since items, which didn't amplify true damage before, now amplify true damage.
I was simply wondering where broad stances on something like that landed now.
Pre-rework Swain E used to multiply true damage on purpose so that it multiplied him running Ignite. It was designer intent of "this works the way I feel like it should" benefitting the player being more important than rules consistency.
To be clear, consistency is never the most important rule. It's nice to have when there aren't more important priorities. It helps the game be learnable and is a positive, just not the most important design consideration.