On this blog, both title and the first paragraph say: Don't/shouldn't read too much.
China's Defence Ministry said today people shouldn't read too much into a state media broadcast of live-fire military and landing drills, just days after a landslide election win by an independence-leaning opposition party in Taiwan.
Now, to my mind, this phrase is not written in literal meaning here, and I could not find it in any dictionary. Is it an idiom? What is the meaning of this phrase in the given context? Is it written to tell people should not bother about it? It's confusing for me.