ls -l / question in jessie

[emetib <chadbrabec@gmail.com>]

why do the sym links in ls -l / point to /boot/ and boot/

lrwxrwxrwx   1 root root    31 Jun  3 10:34 initrd.img -> /boot/initrd.img-3.16.0-4-amd64
lrwxrwxrwx   1 root root    27 Jun  3 10:34 vmlinuz -> boot/vmlinuz-3.16.0-4-amd64

is this just a fluke in the way that the two of them were made?

cat /etc/debian_version 
8.6
cat /etc/os-release 
PRETTY_NAME="Debian GNU/Linux 8 (jessie)"

yet in stretch/sid they are both pointing to just boot/...

lrwxrwxrwx  1 root root    29 Sep 19 13:50 initrd.img -> boot/initrd.img-4.6.0-1-amd64
lrwxrwxrwx  1 root root    26 Sep 19 13:50 vmlinuz -> boot/vmlinuz-4.6.0-1-amd64


any ideas?
thank you
em