Question about Impossible Astronaut.

Ok, so I never really realized how confusing this scene actually is in the episode until now but I was rewatching it and it struck me that this scene doesn’t really work unless he still had regenerations he didn’t know about. According to him later in season 7, he was on his last regeneration and he counts the one in Stolen Earth/ Journey’s End even if he didn’t change. If this is the last incarnation that he thinks and technically at this point in time he’s supposed to have, being shot shouldn’t have triggered regeneration. It made sense after the time Lords granted him more, a whole new cycle- actually infinite according to the 12th Doctor.

I know the real reason is because Moffat and his team of writers probably either didn’t know that him getting a new cycle was going to be part of the plot for season 7, or they forgot that was going to be the plan. For the sake of universe immersion though, how could this be possible? Was it just energy strong enough to heal him, or attempt to heal him but not fully go through with a regeneration or did he have a hidden regeneration left that he didn’t know about-which is the only other thing that makes sense. While I haven’t watched the actual episode I know there was another “hidden” Doctor, a Black woman, but I don’t know how that happened, with the War Doctor it was triggered by the Time Ladies on Galifrey with the potion.

Also: I just thought of another tiny moment where this happened before season 7 established he was definitely “done” with his regeneration cycle (as far the character himself was aware). When he’s been poisoned by River and he’s dying and he thinks he can still regenerate even though he should know at this point that he is on his last, the scene also still establishes he can by taking a moment to let us know that regeneration has been “disabled”.

So.. thoughts anyone?