I like having different options with my email templates! The interface isn't always intuitive so sometimes getting something set up can be difficult or even confusing at first glance if there's not enough examples/explanations around what each button does (and where).
If someone has no experience using an automated system such as Marketo then maybe have some training available before their account gets active? You don’t want them going into production without knowing basic things about setting variables within emails etc.. This makes life easier later down stream once all setup & customizations done - plus also helps save money over paying support staff overtime while waiting until more experienced users get back from holiday / sick leave :).