This is what the I've found on the Ubuntu Wiki Page (since it is the same
kernel but without the proprietary stuff):
https://help.ubuntu.com/community/ServerFaq#What.27s_the_difference_between_the_kernels_linux-image-server_and_linux-image-generic.3F_What_architecture_is_linux-image-server.3F_Which_one_should_I_use.3F
So if I understand right, it is just a matter of installation procedure
nothing more. So for this version it is better to recommend the
'''linux-image-server''' version but for the next one (Toutatis Trisquel 6.0)
it would not be necessary anymore. And since Trisquel 6 is on his way maybe
there is no problem in letting the wiki like this don't you think?