Not mad keen on the 'show the crew' thing. It always looks like a mistake when they don't reference it. At least if Jo said "well, off you go, thanks for coming on" and then the floor manager came in to de-mic somebody, then it would have a bit more context.
At the moment, they cut to wide shots while somebody is talking, to reveal that nobody is listening because the floor manager is faffing about with a guest. Not to mention that in nearly every show they'd had a live hit from parliament or a VT that they could have used as a guest change-over moment.
I don't think it indicates that 'nobody is listening' at all. Studio guests are used to seeing activity around them during a programme, so I'm sure it would make little difference to them whether the viewer can witness it.
From my point of view, I don't think it detracts from the programme. If anything, it makes the viewer feel more involved in the 'live' aspect which they are undoubtedly wanting to emphasise.
DP had a similar turnover, but it felt less fast paced and easier to grasp the debate. This feels too rushed in one go for what is a 45 min slot.
I think the usual DP (except Wednesday) only ever had 2 guests who stayed throughout. They rarely invited someone else on, and if they did, it was only one.
Now they have 5 guests permanently around the desk at a time, with 2 of them being changed during the programme.