There should be a copy or better yet rsync

I had an experience this evening that convinced me the option available when in restore mode from the bootable media to 'move' an archive to another location is an obvious danger zone. Why there isn't a 'copy' option or even better .. an rsync option is puzzling.
I mean this is a little linux OS... why be so stingy with the tools. Especially when you make the user risk completely loosing an archive. Say in the event of power loss or some other inadvertant turn off.

Being in the middle of a move at such a time is obviously not a good idea.
Maybe this is really a differnt kind of 'move'. Maybe it is really copying until the archive is moved and then the copy is deleted... if that is true then the user should be told about it other wise it seems really hazardous to use the 'Move' option.

What I ran into was even worse...
I tried the 'Move' option, pretty much out of necessity...
AFter a good bit of time passed and the progress bar had completed,
the dialog tells me the move was 'successful, all done!

I ejected the disc at that point but Whoops, the screen blew up with a herd of write errors ... apparently it was not really done and was still trying to write.
Makes me wonder if that 'All Done" dialog isn't jumping the gun...and seems like really likely way to end up with a ruined archive.