It's good news for the 'LLU' ISPs, but I doubt it will make that much difference. In the grand scheme of things, I should imagine the cablelink connection fee is a drop in the ocean.
Most will already have [multiple] cable-links in place, so unless they suddenly get a large influx of new NGA consumers at a particular head-end exchange I cant see them taking up the offer. BUT it may be an incentive to upgrade to some 10Gb links though - as the cablelinks could be a point of congestion for the 'LLU' type ISPs.
It may also prompt the 'LLU' SPs to purchase cablelinks on to the FTTP & G.Fast switches which is where they previously have shown little interest.