It’s just for show at the end of the day, a photo shoot to make them look good. Publicity stunt.
The entire reason the Taliban work so well is because they don’t stand out, they integrate into the local population of Afghanistan (and they used to in Pakistan) and that allows them a lot more freedom of movement and such. This will make them stick out like a sore thumb.
These weapons and kit are also very very diluted, the average Taliban fighter doesn’t have these or even proper body armor. That’s why you’ll rarely ever spot these in the hands of Taliban in battle.
Optics mounted on AK dust-covers further show its more just a photoshoot. You’re not meant to mount optics there. Those wouldn’t work at all in a proper fight.