Hello Jenny
First of all, there was a typo in my post which I have now fixed. I had forgotten the keyword always in the second command I was describing.
However, you are correct, that in this particular case of the lesson, the always keyword is not necessary because of the fact that the ABR will advertise itself as the default route even if it doesn’t have a default route in its routing table.
Thanks for sharing this clarification, it’s always helpful! And by the way, it’s no bother, that’s what we’re here for!
I hope this has been helpful!
Laz