The Genesis account is magnificent and inspiring, and certainly not subject to emendation. However, our scientific knowledge of e.g. the galaxies and the cosmic redshift has gone beyond the scope of its description, so we are left to our own devices.
BTW, the article states without justification that the CMB 'is definitely not "leftover" radiation from an alleged Big Bang.' I would point out that at the time it was found "by accident" Dicke et al. at Princeton, not many miles away, were looking for it, albeit with pathetically inadequate equipment.