Mercenary exclusive item affixes

They are too rare.
Not only do you have to keep a kill streak going.
Not only do you have to get lucky that you spawn an infamous one.
Not only do you have to get lucky that its the right infamous one.
You also have to get lucky that he spawns with an item that sports a mercenary mod.

And after all that, if you got lucky, you can just pray that the item is actually salvageable. Since interacting with the recombinator is pretty much just deleting the item with massive odds like 0.2% for a 2 stat item.

Is there any plan to hopefully increase the rate at which they spawn with mercenary mods?