After Jones' thread started getting attention on Twitter, the BBC Press Team stepped in to offer an explanation by directing him to the show’s Frequently Asked Questions page.
On that page, the BBC writes:
People apply to be in the audience for Question Time via the website and by phone and producers get in touch to ask questions on their previous voting record and future voting intentions, whether they have party political membership and also how they voted in the EU Referendum.
This is to ensure a range of views are represented in the audience.
Most importantly, it points out that impartiality is not decided by the make-up of each episode's audience but by the general political views of audiences over the whole series.
As with the make-up of the panels, Question Time is aiming to achieve due impartiality in the membership of the audience across the series as a whole, rather than being confined to an exact mathematical formula for each programme.
So in theory, there could be episodes where five Labour activists all ask questions to the panel.
But that answer didn’t satisfy Jones or Dudley’s Labour group, who were angry that only one Labour member was present in the audience to their knowledge.
The BBC say that there were activists from both main parties. But so far we've established that five Tory activists… https://t.co/b3at2eIC9r
Examples like this help fuel the belief that the BBC is biased against Jeremy Corbyn’s Labour Party and left-wing causes in general.
That belief is also balanced by those on the right who claim the BBC is too left wing, particularly on Brexit.
Arguments that the BBC is biased are used by both sides of the political spectrum, often without clear evidence, and claiming that this episode is proof of bias is essentially a conspiracy theory without further information.
But having five active Tory members ask questions in the same episode is not a good look, even when it happens by chance.