the PSP also has that disclaimer..
There is one reason I'd overlook the disclaimer in this particular case and it is that ETS gets some of the proceeds. However, to be completely honest, if either the Spark-Lite and Tinder Quick, Rescue Flash Signal Mirror, or Rescue Howler were the items replaced or deleted, chances are I'd not buy it.
This lets them make such substitutions that do not reduce quantity, quality or functionality based on temporary supply issues without having to change the catalog picture for one production run of a product they've made without change for a decade or more
Actually it's that I don't trust most companies to replace items with products of equal quality because most will cut corners to make more of a profit if at all possible. Also, the disclaimer does allow for the deletion of items without replacement. Similar to the PSP, if either the Rescue Flash Signal Mirror, or Rescue Howler were missing from this kit, I wouldn't buy it at the price advertised.