Static sites w/ GS - speed & security. "GetSimpler"

[Connie]

I'd like to discuss the cons and pros of such a scenario, so that I might understand that request better:

1)
I doubt that a small static site will load faster than a small xml site ...

6 HTML files <=> 6 XML files, will there be a noticeable difference?

2)
in such a scenario: admin-area will be gone, plugins will still work?
how to configure image galleries, add images etc.?

3)
how to update pages? Start the old story again, with editing offline and upload ?

4)

the fear that such a system will be "bugged" by the users / clients ...
- we have multi-user-plugin with restricted profiles
- you can place the admin area in some subdirectory so that it is hidden, even to the user/client

All the advantages of ContentManagement will be lost ...
I just see disadvantages in relation to ContentManagement

in case you do not want ContentManagement, why not use a plain HTML-editor and upload?
Just like I did since 1993?
Back to the roots?

so, give me some enlightment, maybe there are really reasons for that and I am just blind ;=)

Cheers, Connie