At least it gives the employee something more than just wages for the notice period, the classic common law remedy which is in general reaffirmed by this case. (newlawjournal.co.uk)
Specifics will vary by state jurisdiction but the general common law remedy would be the tort of negligence. (law.stackexchange.com)
Breach of CRA 2015 terms may entitle rights to repeat performance (within a reasonable time and without significant inconvenience to the consumer unless conformity with the contract is impossible) or price reduction but without prejudice to common law remedies. (newlawjournal.co.uk)