I think it was a mistake to remove the sparklite and replace it with matches. The other items can be added as needed. I would add my own SAK, its better than a razor blade and no need for AMK to add the expense to the kit. Foil is found in every home so why should they need to add it, likewise for string or mason line.
And not to forget pencil and paper, the waterproof paper might be nice to have tho.
Maybe that is the Idea behind this kit, just include the items that are not readily found in the home and let the purchaser add the common items? Still IMO the sparklite is a serious omission, I have a bunch of BSA spark tools but how common are they in the average home.