I don't know if they have or not, but apparently they can't because of the established case management process which presumes time is waived. The defense would probably have to file a special motion to do it and that hasn't happened as far as we know.
Isn't it also the case that in American history only one defense attorney has ever asked for a "speedy trial", and he later admitted it was a great mistake (as he stood there cooled by the wind wafting from his client's legs).