Why would they have be limited to an 8 week covered period? It is possible to elect that, but the PPP Flexibility Act extended the “covered period” with respect

Why would they have be limited to an 8 week covered period? It is possible to elect that, but the PPP Flexibility Act extended the “covered period” with respect to loan forgiveness from the original '8 weeks after the loan is disbursed' to 'the earlier of 24 weeks after the loan is disbursed, or 12/31/20.'