So I called and switch to the double points after second paid stay (not 100% clear on whether the second stay gets the bonus points or not).
After being given a speech about how these are targeted promos and I'm really not supposed to ask for this but she'll do it this one time . . . I got this newsflash:
The bonus points won't appear until after all of my summer stays (June 1-Aug 31) are posted. Then, I have to call MR back and DO THE MATH with them OVER THE PHONE. She suggested I track it manually to be sure. Then MR will credit me whatever points I'm owed . . .
WHAT COULD GO WRONG?