Analysis of Aderlass athletes who were found to be blood doping showed no biopassport abnormalities, reinfusion seems to just occur at a smaller but more frequent rate as evidenced and as Dr. Fuentes suggested, I imagine there are also other workarounds;
Procycling investigates the cracks that have appeared in the tool credited with cleaning up cycling
www.cyclingnews.com
I understand it is constantly being updated based upon new parameters, but given the hundreds of blood-doping positives in cycling and athletics since it's introduction that weren't also accompanied by AAFs I would suggest it just provides a stumbling block to this method rather than an outright bulwark.
I'm not sure about UAE, perhaps they have found something else more fast-acting, Vingegaard's program does feel like something that preparation is required for, hence him falling off a cliff today and in San Sebastian last time.