The implementation does seem very basic. It's really not much beyond the tethering that the original istD had. They have added wireless and liveview to something that they were doing a decade ago.Just a thought
Seems a very easy function to implement and increases the sales value of the product.
You could have proper interval - delay and a whole raft of count down, schedule etc firing.
In addition you could utilize the aperture and shutter controls to give wide range bracketing capabilities
All of this is currently available within the hardware but is not leveraged from the software (browser)
so hoping they develop the product add a cifs/ftp/webdav or nfs service and you have potentially one of the best 'tether' products on the market.
Rather than the 'its OK' we have today.