Maya Lopez or “Echo” is a newer addition to the MCU. So naturally, there is some hype behind the project initially. On top of that, your claim to fame comes from being on the run after shooting Wilson “Kingpin” Fisk in the face. Seems like an easy sell to me. Outside of that, we don’t know much about Maya. She is not only deaf but also an amputee mercenary who grew up as Kingpin’s niece.