That's unrealistic. Managers who are unhappy with workers ignoring emails will find a reason to fire them, not promote them, or give them a smaller bonus.
It sets the rules, workers will have to fight for it to be followed still. But sociopathic management now knows workers have a foot to stand on in court, enterprises will be inclined to make it policy. Less sociopathic management might realise they were being assholes and dial it back a bit. Some managers genuinely don't realise that the current "norm" is not fair, since they are deep in the zeitgeist.
Countless exceptions sure but there's no denying this is a good attempt at change.
