To be fair though, if the manufacturers just "advised" that sprinklers would be good then who would install them unless that was part of building regulation rules? Sprinkler installations on a building that size are very expensive, you dont just connect them to the main, they need storage tanks, pumps and all sorts of other things to work properly from what I have seen.
There are ways of making modern buildings safer in a fire than they are now but no developer, architect or client is going to spend money on something that is not required by law in most cases.
Sprinklers installed in all new private houses would save lots of lives but it is not a building regulation requirement ATM and with the costs involved no one/ few are installing them just because they would be better for the home owner.
Building regulations were a lot different after the Summerland fire, for good reason but I dont think you can expect the people involved at the time to have installed very expensive fire precautions when they were not a legal requirement if you know what I mean.
I know what you mean. There were many reasons why people died; it wasn't just the fabric of the building, the LOCKED FIRE EXITS, poor management-communication and panic also contributed to the death-toll. As did the inadequate fire-fighting equipment.
The last thing on everyones mind was that a tragedy would occur- this possibility never really entered into the equation so was ignored, perhaps wilfully.
It is said that the Summerland fire instigated change in the perception of risk-management of such projects.
It was a hard way to learn for some, though...