Which really sucks because no you need to wait for minutes before it actually starts moving or deleting. I generally just abort, start the midnight commander or just invoke mv/del directly.
> But a single dialog that keeps track of the whole copy/move operations
Which is what is the case here? The question and buttons appear in that dialog.
The error/retry dialog is for the failure of moving an individual file, not for a failure of the move operation as a whole. Those individual error dialogs provide no means to deal with cascading errors. All you can do is "Skip All", but that means you get no further information on errors anymore.
The error reporting should be part of the Moving dialog itself and provide a list of everything that failed in the move, along with potential ways to resolve it. More detailed reporting than "Could not read" would also be welcome (io, permission, ...).