JK- the nickname for the recently deposed Oz PM Kevin Rudd is TinTin for the obvious reason he looks like him but why Ned Sherrin ? That one escapes me.
Your review sounds pretty correct. Even reading Tin Tin comix as I did when young and even though they were exciting Tin Tin was never really an over whelming character, just the central point which the action happened around.
A bit like the Famous Five who had amazing adventures surrounding them but mainly spent their time sharing a piece of chocolate while trapped in a smugglers lair and rushing home to feast on lettuce sandwiches.