The first Echo trailer surprised Marvel Cinematic Universe followers, revealing the TV-MA tone that will be a first for Marvel Studios. Following the release of the trailer, Marvel Studios also unveiled the title will fall under new banner called, Marvel Spotlight. The new banner will add some separation from the other MCU projects being released, with Marvel Spotlight set to tell more grounded and character driven stories.
Source：https://www.cbr.com/mcu-marvel-spotlight-explained/
