Sure. They didn’t completely rework multiple core systems, improve performance, or anything for people who didn’t buy the dlc. Same exact thing it was when it released. /s
What core systems did they rework? the only one I can think of is they changed how police spawn.
Police spawning. The entire akill tree. Wardrobe, divorcing the armor stats from appearance. It’s a pretty drastically different game without the DLC from the product it was at launch.
I mean I litterally mentioned police spawning as the only major mechanic. And none of the other things you mention actually effect gameplay.