Let's refocus the query. Assume circumstances in which, following the change in service providers, nothing in the Internal Revenue Code (including rules, procedures, and other interpretations under the tax Code) requires a change to a document that was stated using a no-longer service provider's prototype or volume-submitter document. But the employer is willing to restate the plan because the employer wants to make the current service provider's work more efficient by letting it look to a form of document on which the service provider has a developed base of knowledge and experience.
In those circumstances, is the expense of restating the plan an expense that is reasonable in the plan's administration because it enables the plan to obtain the current service provider's services (or obtain them more efficiently)?
For those who worry about whether an otherwise unnecessary restatement can be a proper plan-administration expense, would it change your analysis if the superior service provider were unwilling to accept an engagement unless the plan is restated using the document that the service provider prefers?