Post the link to the technical information here if you can find it.
There have been historically a lot of discussions on “non-interactive” transactions (transactions without the need to be online) with some reasonable solutions presented, but all come with some downsides in terms of complexity and scaling, which I why so far no decisions was made to implement them. I assume this is a similar solution. If it would be technically much different, it would make more sense to discuss it then if it is a solution which has already been discussed in the past.
Some past proposals for non-interactive transactions: