DROP VIEW code question

In tcop/ulitity.c we have the following code fragment:

case VIEW:
{
char *viewName = stmt->name;
char *ruleName;

ruleName = MakeRetrieveViewRuleName(viewName);
relationName = RewriteGetRuleEventRel(ruleName);

This looks like an expensive no-op to me.
if viewname == "myview"
then ruleName == "_RETmyview" (+/- multibyte aware truncation)
then relationName == "myview"

Is this code doing something that I'm missing?

Also

"DROP TABLE x, y, z" is allowed, but

"DROP VIEW x, y, z" is not.

Any reason other than historical?

--
Mark Hollomon