Lead Balloon, it is child’s play to write a computer program that reads AWIS, NAIPS weather forecasts, metar , etc. and reads adsb data as well.
Anyone in an adsb equipped C172N who takes off over +40C can thus be issued an automatic penalty notice.
If CASA was genuine about such a concern, they could have saved the industry much worry by simply writing to a list of manufacturers asking for either data or any reservations.
As for experimental aircraft we are now in the fantasy world where “no data” means “no limits” consequently performance testing is of no value.