"It's sad, isn't it? All these older guys still partying way past their prime."
I don't understand the above sentence because from the below present participle case
The man
smoking a cigarette is my uncle
Smoking a cigarette modify what man is the speaker's uncle It focuses on the man not his action of smoking
I understand it because participle is verb-adjective It is the same as the sentence
The man
who is smoking a cigarette is my uncle
But
"It's sad, isn't it? All these older guys still partying way past their prime."
It seems to focus on the action/partying but it is not focus on the guys
It seems to be like this
It's sad, isn't it? All these older guys.
They are still partying way past their prime.
It does not seem to be like this
It's sad, isn't it? All these older guys who are still partying way past their prime. [Which is I understand that partying modify that the older guys are pathetic not their action/partying is pathetic.]
Isn't participle use to modify but it is not the focus of the sentence?
I'm so confused............