Maybe we should also licence pishing, whistling, and Percy Thrower?
It's a fatuous comment, but what is the actual difference between using an app and using your mouth to mimic a bird? Some birds are very easy to mimic well, just as successful as an app. Do we ban whistling too?
A second point - what is the difference between intentional disturbance using a bird call to see a bird, and intentional disturbance by walking into a bird's habitat to see them, in full knowledge that you're almost certainly going to flush them by doing so (think of Blackbirds, Woodpigeons - the latter often from nests)?
Surely we should all be staying at home in order to not 'disrespect' the birds by disturbing them in any avoidable way?
Again, I'm being fatuous, but it is a serious point. In the absence or conflict of evidence regarding how important the use of sound recording actually is in terms of disturbance and harm, I think this press release is more about the Dorset Wildlife Trust wanting people to show 'respect' to them and their opinions, rather than the birds. After all, they do not actually know that serious or meaningful disturbance or harm is being caused. They're just assuming it, and then presuming to order everyone else to bend to their personal feelings.
They also seem to be misrepresenting the legal situation (it is not illegal to use playback on Nightjars in the breeding season, as they are not a Schedule 1 species), which perhaps also suggests it's more about their feelings (what they would like the law to be, what they think is harmful) rather than the actual situation (it's not illegal, it is far from clear if it is harmful).