Combining Direct & Indirect Objects

Is the Spanish statement in the lesson below incorrect?
Lesson 4.10 Spanish statement: “Ellos nos los piden.”
Lesson 4.10 English interpretation: “They ask us for them.”
My interpretation: They ask them to us.
In order to reflect the Lesson’s English interpretation, shouldn’t the Spanish sentence be: Ellos se nos piden?
 

pedir - to ask for (something)

nos is the IO because they are not asking to receive or obtain us, rather they are asking something of us.  That something is the DO or them.  I don't know what them  is without going back into the lesson for the context.