This is great. But any thief with a brain will simply surpass these security levels by taking the SIM out and wiping the iOS new. Until they develop a long-term and solid option that can't be rewritten or restored, all of these improvements are only half useful in my opinion. But better to have something than nothing, in case the burglar doesn't turn out to be the wisest.
How many run of the mill iPhone thieves know how to wipe the iOS new?