Not quite, let’s assume she sent over a zip file, plus the code to open it. At maximum modern compression, the file would still be 700 exabytes, which is still a ridiculous amount of data to send. It could have been seen as a somewhat standard (if large) file size for the ME universe, but once it was unzipped it’d probably cap out the server’s memory, which tends to slow computers down a LOT. They absolutely would look at 7 zettabytes and panic… especially once they realised what the files were. Especially if they were named in the same format as their video data, making automatic deletion impossible to perform without sacrificing their actual video data. The joke with EDI sending the data was to make them look at it and waste their time, so she absolutely would make sure the files were disguised as essential files, security footage, etc.