A few weeks ago there was some coverage about the
You're Platinum with SPG e-mail, whose wording changed sometime around summer to say:
STEP UP YOUR STAY. Enhanced room upgrades at check-in1 and 4 p.m. late checkout2
No longer "including Standard Suites". Perhaps this has been rolled out ahead of 2018 and properties are now adhering to the upcoming terms & conditions not yet seen by members?