Not a problem if you understand the reasoning and aren't
tired.
Clearance limits and radio failure procedures became standard into RIO after a couple of CFTs - one of which got lost in the system and flew on under the belief that they were still being actively controlled until a large lump of granite stopped them in their tracks.
Perhaps the crew should have had some training in what to expect when flying into Rio.
Obviously they didn't understand the significance of being cleared to establish on the localizer either!