I was in Costa a month ago & went to Pueblo Marinero one evening around 7.30 pm. I wish I'd made a booking, as most of the restaurants were full. On eventually getting a decent table in one of them-(I can't remember the name, but it had Canarian decor) he said that Pueblo is always busy in the evenings.
And you have been coming to Lanz for 5, 10 or 40 years ?
Or most likely your first excursion ?
Lanz was far busier in the very late 80's and early/mid 90's.
It, like all the rest of the Canary islands has not recovered.
That is a great shame.
But being as our 'unelected rulers' want us in poverty, what can we do ?
Been coming across a lot over the last 25 years and ran a watersports business for nearly 2 years. Perhaps that doesn't quite put me in the 'expert' category like yourself.
The point I was making is that during the time the OP said no-one was gong out, they certainly were-just not in the parts of Costa he happened to have visited.