One-time pads only work if you already have a secure way to transmit the pads, and if you have that, you could probably use it to transmit your actual data.
You only have to transmit the pads securely once, if you send enough of it. The rest of the time you can transmit
non-expensively. That's the whole point. It's the tradeoff of one extra-expensive secured communication once so you can transmit anytime, anywhere afterwards securely. If you really care about nation states grabbing your data, this is a much more reliable system than what is proposed herein. (Though really, just a two-factor auth system would be more secure than what is proposed)
