1. people can use invoice uri that contain ip or tor addresses.
your reliance on your wallet having a dns bootstrap is a privacy concern

2. you think the only messages involved in a LN are
node announce
channel_update
update_add_htlc
update_fulfill_htlc,
update_fail_htlc,
update_fail_malformed_htlc
commitment_signed
plus a few others. you think there are only under a dozen

in other topics i shouwed you there are like 500 different message types, and each of those times can be used for a multitude of things
even simple messages like pink and pong can add payloads of different information, well outside of your "update_add_htlc" mantra where you think everything is done inside