BlueCruise requires additional hardware. From everything I've seen this hardware is not included on the Maverick. Down the road there might be opportunity to integrate this hardware and add the feature. It sounds like other models have the hardware incorporated but unable to use until a future software updated. Below is a link to a video that goes through what is installed/required for BlueCruise.The key is "Features availability varies by vehicle."
Ford did a messy job of naming their safety stuff and implementing it across the line. Only the F150 upper trims and the Mach-E get it this year I believe.