Hi friend.
What do you mean by "moofed" and "issuing authority"?. Bear in mind that sudo
doesn't uses certificates like SSL/TLS, so there is no "issuing authority" to
speak of, at least as far as I know.
I don't think that "sudo su -" is intrinsically bad for security. This is one
possible use case for sudo. It makes sense in an environment where there is a
set of users all of whom are all trusted system administrators, and they need
to run tasks as root. The downside is that using this command, sudo doesn't
by default logs every command that the administrator executes, but provided
they are all trusted (all administrators are honest and responsible) then
there should be no problem.
Bear in mind that using "sudo su -" is no worser than using "su -" directly.
Other than the above, I can't comment, because I don't really understand what
point you are trying to make.
Regards.
