It's a nice image of Galen Erso as a father and Jyn as a daughter. As well as a droid (who, since Cassian had only vague mental reference for an MV, of course resembled Kay) being so ridiculously situated and being sporting about it.

"Kay once offered to undergo a memory wipe for me," murmured Cassian. It was the first time he'd spoken of Kay since arriving. But he says it as if it were the easy response to an ongoing conversation. "He saw me crying and volunteered 'in case' my 'continued dignity demanded it'."

(Actually it had been in case his continued dignity and service demanded it. But what had precipitated those tears was less important to Cassian right not, and not a tone he wanted to add to this moment with Jyn, than Kay's response to it.)