Do the publications still use exclamation! points excessively?
Absolutely!
The current convention title is "Pursue Peace"!
They have always done this, I always thought it was a US thing, maybe not.
When I was at school (George VI was on the throne when I started) we were always taught that exclamation marks (points) were mainly used in fiction. "Good grief!" cried Alice, "Nothing's impossible!"
Probably says it all.
George