I'm not sure this law will change that though - at least not until they weed out the £80 drive by reports - or the con artists charging to slap in a metal board to replace a perfectly well installed plastic one to tick a box rather than to improve safety. Landlords have always had the requirement to maintain a 'safe' installation.
It's more about a lot of people thinking that when sockets work, nothing can be wrong, where they tend not to have that view about gas so much. That's something the governing bodies should be trying to change with all the money they are taking from their 'members'
Also (not aimed at the OP at all, but a wider point with some landlords - more often the ones with many properties) - some landlords have seen rental stock as a purely investment cash cow, where they put as little in as possible and reap the percentage rewards year after year.
There are plenty of good landlords out there of course - and then there are ones that need guidance now and again on the difference between unnecessary work and vital safety improvements that will look no different on the surface.
It will be interesting to see how AFDDs are introduced in the EICR guidance - might be a few surprises in 5 years time if every board has to be replaced.