Not only have the rules not changed, but it looks ridiculous, amateurish and just plain wrong to see that period stuck way out there. The reason that the young lawyers regularly break this rule is that they didn't have me for an English teacher.
Here are the rules for punctuating the end of a quotation as I teach them:
Commas and periods are ALWAYS inside the quotation mark.
Semicolons and colons belong outside the quotation mark.
The coach promised us "lessons"; we never got them.
There was only one "lesson": do what you're told.
Exclamation points and question marks can be inside or outside the quotation mark depending on the meaning of the sentence.
Did you read "The Raven"? The entire sentence is a question.
Bob said, "Who is there?" Only the quotation is a question.
"There's a shark in the water!" she screamed.
If I have to say "Sit down, Bob," one more time I'll kill him!
Please tell those young lawyers to buy a used 6th grade English textbook and read it. They're probably also abusing apostrophes and making other egregious errors. Stop them by any means necessary before they reproduce..