[tor-relays] how important is configuring DNSSEC root trust anchor for 'unbound' running on an exit node?

[Dhalgren Tor]

Is it important to configure the DNSSEC trust-anchor for an instance
of 'unbound' running on an exit node?  I put a lot of work into
setting up a new exit and want to take a break, but just noticed this
item. 'unbound' was built from source rather than installed from a
distribution, so this step must be performed manually.  The relay
resides in the high-quality German LeaseWeb network and the risk of
DNS mischief appears low.