I would disagree about Pol. He has a reputation for bottling it. He made a meal of the Moto2 world title and lost 2 or 3 opportunities to win in 2020 with KTM. 2 of those occasions another KTM rider took the opportunity (Binder at Brno, Oliveira at Austria). Don't forget the slow Honda is the bike he asked for (early 2022, "Honda have given me the bike I asked for and we are back") and given Aleix helped develop the early Suzuki and the Aprilia, I rate him higher as a development rider.
As you said though, I keep Dani as a test rider over either Jack or Pol.