I think a lot of representatives were misinformed, especially once the early 90Ds were delivered with the active spoiler. I was definitely told point blank when I test drove at my local SC that the 75D and 90D would open and close but not adjust to speed.
On the configuration page (now and when I confirmed), "Active spoiler included" is listed under the P90D, and the description says "Available only on P90D"
Attached is a photo of the fixed spoiler. The post is permanently fixed, without any sense that it should have been able to retract.
View attachment 182025