To me it seems especially late since the platform has been broken wide open.
The "jailbreaks" now have access to both processors used to boot the system and games, so they can run code before the system loads and intercept writes to their memory locations.
They can block exploits in new firmware versions (and have), but the system has sold so many units there doesn't seem to be a realistic chance of "breakable" systems running out for those interested.
Especially considering the hacks allow you to have more than one 3DS firmware installed at a time, allowing you to do things that require a clean slate while still being hacked.
As long as you don't install some theoretical update that blocked all the exploits directly onto your real NAND, or as long as you don't buy a fresh 3DS with this update baked in already... you're honestly all set.
The "jailbreaks" now have access to both processors used to boot the system and games, so they can run code before the system loads and intercept writes to their memory locations.
They can block exploits in new firmware versions (and have), but the system has sold so many units there doesn't seem to be a realistic chance of "breakable" systems running out for those interested.