Forklift driver collapses entire warehouse of racks - GIF

[Frank S]

Well if he survived, maybe. However in this case we can hardly blame the driver as the fork lift was barely moving. It makes me wonder if the support legs where even bolted down. It looks like he was trying to creep by the blocking palet and as such the racking should not of failed even from accidental contact.

Personally this looks like an example of engineering that solved the simple structural problem but never addressed the realities of the work place. Crap happens and your designs need to anticipate those accidents.

You are correct this is a prime example of why it is recommended by most reputable pallet racking system suppliers that tall systems are installed with lateral bracing is used to tie the rows together at each set of columns with diagonal braces as well. There are also impact protectors available which sleeve over the bases of the columns.
It is generally not a good idea to tie the rows of racking to the building in any way due to buildings not being designed for it.
Also in the case of long rows Hero column leg frames should be installed at regular intervals. A well designed and installed racking system should be able to withstand the destruction of a single column or a racking beam being ripped form its mountings without the loss or damage to any part of the remaining system.