Because of the civil penalties and legal fees.
The £5k is against the Directors personnally for not filing accounts in accordance with CA2006.
I was perhaps being a tad facetious - it's just the sort of thing Ashley would go for !
Appoint a sole director to take the rap and the £5000 fine for filing unaudited accounts. Cheaper than paying an audit fee and that's if Companies House even notice that they're unaudited.
When it comes to the civil case against the company - will they take Ashley on ?
We have sucessfully used the clause against Directors of a struck off company. We went via a collection agency who put in a claim against them via the online small claims service. The client appointed a solicitors who tried various arguments including the "personal guarantee is not valid". We countered with the fact that there was no need for a guarantee as the directors had signed the engagement letter "as a whole", they had not requested amendment to the individual terms and therefore having been given the opportunity to remove the clause they had chosen not to and therefore had accepted the terms and the personal responsibilities within the agreement. Their solicitor then offered a full and final and we accepted.
It has also been useful in getting a couple of other defunct clients to pay up just through their ignorance of such matters.