Hi - Just wanted to say thanks for raising this. I’ve had exactly the same issue with the pin conflict when trying to use the Airlift Featherwing to send the Enviro+ readings to Adafruit IO. It does seem to be an annoying design issue (along with the temperature being way too high).
Ideas to solve the pin conflict are:
1 - send the data over Bluetooth to a Raspberry PI then via WiFi to AdafruitIO
2 - use the Adafruit Airlift breakout instead and wire it to different pins
To be honest I have moved on to other projects now but, although I learned a lot, feel a bit frustrated.