Newspaper Taxi wrote:
-- and so the story is broken and I can see the man behind the curtain winking at me.
Which I think was the idea. After all, the next thing they did was to show the actual Hartnell version of the "I shall come back" speech, which revealed the unreality of the Bradley version we saw earlier. So basically the ending was an acknowledgment that this was a dramatization rather than reality.
In a way, they were saying:
Be cheerful, sir,
Our revels now are ended. These our actors,
As I foretold you, were all spirits, and
Are melted into air, into thin air;
And, like the baseless fabric of this vision,
The cloud-capp’d towers, the gorgeous palaces,
The solemn temples, the great Globe itself,
Yea, all which it inherit, shall dissolve
And, like this insubstantial pageant faded,
Leave not a rack behind. We are such stuff
As dreams are made on, and our little life
Is rounded with a sleep.
Which I think is a pretty good reminder that one shouldn't mistake a docudrama for real history. This may have been a representation of the show's origins in 1963-6, but it's actually a creation of 2013, and it's good to remember that.