there is no sense in this dialog for normal edit process.
normal behavior is insert item with all properties by default and then edit this properties in properties view.
for old users who like this option my recommendation add this as configurable option in Preferences dialog,
add checkbox "Show "Insert Tag" dialog before drop tag on editor" and mark this unchecked by default.
IMO, this option will be useless for all, i.e. it is possible to remove this dialog without some loss of functionality.