You are in an unusual situation, it must be awful. That said, given this is approval panel, not matching, I'm going to suggest it's (almost) a good thing.
There must be noticeable weaknesses in your PAR which have been waved through by the SW and panel. If you go to matching with a weak PAR your chances are much reduced (in some LAs, depending on how they work it might be a minor issue; in others or a VA it could be a big problem).
Resolving those weaknesses now is much, much better. It's hopefully a short delay to ensure no problems later. If it's a longer delay then it's probably needed.
Please forgive the following cynicism/flippancy- we all know how hard this process is:
We've lost all faith in our agency now. Good.
Bind faith in SWs is a bad idea (ours and our agency were wonderful, I am not dissing SWs). If this is enough to stop you adopting, then probably adoption is a bad idea. There will be much worse times than this.
Ask more questions, be a bit pushier, double check things; but carry on- honestly it is all worth it. All the drama and stress fades (to be replaced by more drama and stress). Having kids (particularly this way) is fucking hard but it is indescribably brilliant.