Clark added: “It sounds like they are being very productive and maybe a little liberated because [before] they were a band that had to plan an album release, tour it for an X amount of years, then repeat the cycle.”
He said the return of Larry Mullen Jr “in fearsome form” was significant.
“It’s always been the four, rarely have bands been so deeply rooted in friendship,” he said.
“You thought if for some reason Larry wasn’t able possibly to continue, you do wonder would they have had the same appetite they obviously have at the moment.”
He said the band’s ability to avoid leaks ahead of the release of the two EPs was impressive.
“In an industry with so much scrutiny and so many people around the place with camera phones, they’ve been really good at keeping things secret.
“When those tracks came out earlier this year – normally you get a bit of advance warning, the fan sites, hints – but they really have managed to keep these two collections of songs coming under the radar.”