True, but they would have died shortly afterwards, either from the flowers inevitable effect or from soldiers.
Depending on wether all governments are dictatures in the future or not, I'm not having trouble seeing animal lovers researching them and also leave somewahe findable information. Also, there'd rise some kind of sect beleiving the Mimigas are super-intelligent aliens coming to save humankind, which'd get some media space...
Most people would notice.
But then again, if Quote is a robot, he's probably gotten built in a lab of sorts, getting the neccesary routines for walking and shooting (and speaking) saved in his memory, and then just gotten transported to the area where he's needed.
Is industrial robots (those red arms that make Toyota cars) aware of the fact that there are rabbits? They'd be surprised as well.