Funnily, there's hints that Journey to the Centre of the TARDIS might be Doctor-lite, too. I wouldn't be surprised if they were double-banked series 1 style, where The Long Game split its filming with... I want to say Father's Day? Could be wrong. Could've been Boom Town, or the finale, given the shared sets. So neither episode ends up quite as Doctorless as a lite episode, but nor are they maximum Doctor.
They have broadly been ace, though, yeah - and I'd add Midnight to the list of quite-good cast-lite episodes, too. I love a good format-breaker.