No, i measured the output voltage of the TX with an oscilloscope in which the internal 50 Ohm termination resistor was enabled.
Setting to 20 dBm results in:
V2.0.12: 86 mV at 50 Ohm, is ~ 150 µW
V2.0.13: 2,25 V at 50 Ohm, about 100 mW. About 28 dB more Signal!