shed light on the country's economic downturn

[Maybo]

Is "that" omitted before "shed"?

A young Chinese couple whose struggles to own a flat shed light on the country's economic downturn have captivated the nation.

Couple's property ordeal captivates Chinese internet by Fan Wang

 

[tedmc]

The sentence is fine as it is.

Perhaps it's clearer with commas - A young Chinese couple, whose struggles to own a flat shed light on the country's economic downturn, have captivated the nation.