MS could have also chosen to push a fix that crippled CSS on table header rows or whatnot. Web rendering would break and users would complain, but at least user

MS could have also chosen to push a fix that crippled CSS on table header rows or whatnot. Web rendering would break and users would complain, but at least users wouldn't have been intentionally exposed. It's a false dichotomy to suggest that MS's only options were an actual fix vs. do nothing. There are always other options.