I don't think it matters how many people submit a complaint at this point. The NHTSA has already requested information from Tesla on every vehicle with a MCU1 installed and what the condition of the eMMC is, how many have been fixed under warranty, how many have been fixed by Telsa out of warranty, and how many appear to have had the eMMC replaced with a third-party chip. (Along with requesting a lot of additional information.)
While responding to that request Tesla might decide it is best to issue a voluntary recall. Or not. I guess we will see.
Just as a data point: what is pretty much the equivalent of NHTSA in the UK has already reviewed the MCU failings and determined that it isn't a safety issue that requires a recall because it doesn't impact the ability of the driver to safely control the vehicle, pull over, and determine if it is safe for them to continue to drive. (Or something along those lines.)
Well that sucks. So Tesla is just very sleazy in how they chose to handle this