It may be that working during the covid-19 pandemic is affecting services currently being offered but who knows. Once this shit show's over they may have got used to offering less for the same price and continue.
Can't speak for what service has been like during lockdown, but the Divas have always been a bit of a mixed bunch. The older MILFs have generally been quite good service-wise, although prone to using some over-flattering photos agewise which led to some bad reviews. The younger ones have generally got bad reviews. And as you said earlier, they do recycle the profiles, which is what I suspect has happened in this case.
One of them mentioned to me that she also works a lot in Germany. I suspect that they come to the UK when trade in Germany drops off, either because of age (the older ones) or because of poor service (the younger ones).