Well, without "from them", it could be ambiguous. The reaction could have been from other people.
I say to my friends:
Yesterday I talked to these people on the streets and the reaction I got wasn't good.
Does this make sense? Should I add from them after I got, or is that unnecessary?
So, it's better to add from them? But isn't it already clear who I'm talking to so the reaction would be from them?
What do you mean by that? I don't really understand. Can you explain. Thank you.
The reaction was only from the people I spoke to randomly.
Would you include from them?
I'm sorry but there's an error in the sentence. It's supposed to be:
Yesterday I talked to some people on the streets and the reaction I got was not good.
That wouldn't change your answer then. So, from them is basically not needed. correct?