Perhaps... Probably....
But were are they getting their weapons and munitions from?
Who funds them?
Where have they been training?
They've lived there for centuries. Nothing much has changed, except some influence from outside. But it was also a major trade route for centuries, so influence isn't unusual. When your religion encourages extremely conservative thinking, that influence has to be useful - what use are fancy electronics you can't use or power when you can't afford to keep your children alive from illnesses we have eradicated? Or even books if you can't read? It's been proved repeatedly that the best way to reduce extreme poverty and population problems is clean water, education for everyone and contraception. Note that the Taliban
were are assiduous about persecuting teachers and destroying schools.
You don't need much weaponry to fight that sort of war; consider how much kit Russia and then the West threw at them, and the minimal effect it had. And simple firearms are not difficult to make. The hard part is ammunition, which you steal. Or buy:
The valuable crop is opium, and has been for centuries. We buy it. Their money came from
us.
Why would they go anywhere else to train for fighting in their own region? Guerrilla warfare isn't about fighting large battles, or even skirmishes; it's hit hard, unexpectedly and melt back into the background. You can't tell that one local is a fighter and another a farmer just by looking at them. We've already covered that high tech weaponry isn't appropriate for the fighting they do.
Invading Afghanistan has always been a moronic thing to do. We never learn.