Hi I have EADM/Disk and Origin versions of all expansions and The Sims 3 and my wife has Steam version . (She is only missing one DLC)

The Sims 3: Katy Perry's Sweet Treats
https://steamdb.info/app/223591/info/

So she didn't want to bother with Origin and Origin DRM . Steam way to go for her , I don't want to bother with disks too Origin is for me . Luckily retail keys are working on Origin

And I tried to copy this DLC for her but here are the facts :

Steam version is 1.67 , Origin version is 1.69 .
With that they made some cleanups in files and some cosmetic changes in launcher .
Steam version have /Game/Bin folder under each expansion and stuff files . But now Origin missing those files . EADM/Disk version has same files too but they are different than Steam ones .
Without that folder , expansion seems working under Steam but on Launcher version number seems as 0.0.0.0 .

After I checked all those files I made a conclusion :

TS3SPXX.exe , TS3EPXX.exe , skuversion.txt , Sims3Launcher.exe , Sims3SPXXGDF.dll , Sims3EPXXGDF.dll , GraphicsRules.sgr in each expansion's Game\Bin folder are completely obsolete .
Even Default.ini is unnecessary but it's used by Launcher .

Notes :

I am not speaking about the files under base game folder . Those are still present in 1.67 Steam or 1.67 EADM/Disk version .
Those are only my knowledge . So that's why I decided to ask this on a tech heavy The Sims website . Please help to me . Am I right now ?
Or those files are critical for something ? Also if someone has Steam version of this DLC , could post their Default.ini ?