Some of their use-case they are crowing about on their site cover temporary things: back haul for major-but-temporary events, tethered-drone-mounted units for emergency disaster recover where a cell site is taken out etc. Those are the sorts of things where laying fibre 20km for use for just a day or two just isn't going to happen, but a temporary laser link that you can get up and running in a hour or two would be great.