I wondered if you'd pick up on that!That's an example of player-as-resolution system, yes. Though it seems awfully close to cloud-to-cloud (lack of system scope), too. I mean, the sconce and the opening of the secret door aren't happening on the table in any sense, right?
The cube in that case will be marking off a turn on the time chart, which triggers wandering monster checks et al. In some particular case there might also be (say) a trap which has some cub-ish elements.
In a game that isn't using these mechanical elements of dungeon crawling then yes, it's cloud to cloud.