They've probably just updated the letters sent out to reflect that decision rather than anything sinister - amazing how quick the DWP can move when it's in their favour (sic). If it stops people unwillingly/unknowingly accruing an overpayment then I say it's good thing!
On the PIP claims don't delay on the new claim waiting to gather evidence for a home visit as you'll just face the same problem. Seriously don't!
You really shouldn't have withdrawn you 1st PIP claim and fought the home assessment as recent rulings on PIP conversions and FTA (failed to attend) a PIP Face to Face decisions won at 1st tier tribunal (which I think you stand a decent chance at) now put DLA back into payment until the PIP assessment happens when ever after the fact that might be.
Don't beat yourself up over it and if you can CAB or Local Council or other advice services would be
well worth contacting to see if they can rescue this... put you in a better position. Just get that new PIP application in!
On home visits......
There's a magic list of conditions in the ATOS internal guide - which automatically get offered;
1, a home visit
2, after a fight tentatively offer a taxi
3, refuse 1 & 2
You "just" need a letter from your GP or other recognised medical professional explaining why you need/asking for a home visit. That's it! You send it to ATOS or whoever and then wait.
Expect a fight as anxiety sits in category 2 and they do not like paying for taxis. Neither is a home visit out of the question if you hold your ground.
I sent a GP letter in with my ESA 50 form requesting a home visit when I 1st applied for ESA in 2010.
I was not offered a taxi and when 2 phone calls later was told to send a GP letter... they got a bit flummoxed when informed that my GP letter requesting a home visit was sent with my ESA50. Several phone calls and cancelled F2F appointments later a taxi appeared!!!!!
Could have held out but you get to the point you just want it over! Nower days 40 mins walk to my F2F or 20 mins + 2 tube stops and a diazepam is a lot less stressful than arguing with them!