The EU safety regs didn't stop Grenfell, product safety tests done in the UK may not either.
Proper on site surveys of buildings, which used to be done years ago may do so - if the companies conducting them can be held liable should they miss something.
It's not just a case of checking products though, especially in construction and manufacturing but also how they are applied, what methods of treatment are used, what products are near, touching, heating/cooling, have current going through them etc.
It's a bit like welding box sections in bridge construction, it CAN be effective but if done incorrectly introduces stresses within the material which MAY affect performance depending on the type of bridge the box section is part of.
It needs a layered approach to safety.