Working through the 3.6 default config for the GW driver...

At the end of the Sub Event transform there is this rule:
<description>Rename GroupWise External Entity Login Expiration Time
<if-op-attr name="Login Expiration Time" op="available"/>
<if-class-name op="equal">GroupWise External Entity</if-class-name>
<do-rename-op-attr dest-name="NGW: Mailbox Expiration Time"
src-name="Login Expiration Time"/>

Why is is the schema map being done here, instead of in the Schema Map

Seems sort of out of place and counter intuitive? Thus my expectation
is there is a good reason. Anyone know? Perry?