They also don't want to say "DellappLenoHP" laptops could not be attacked and turn out to be wrong. Or maybe they're right but only with factory 2GB modules used between May '11 and July '13.
Way too many variables to make any claims that is ethically defensible.
They could specify the detailed system configuration with the CPU, chipset, and DRAM part numbers (including date codes) so others can compare. It's much better than leaving things in the dark completely.
Way too many variables to make any claims that is ethically defensible.