Only time that hot air is a problem is on shut downs where heat will rise up an soak the IAT. Going down the road the air is pretty much ambient. I've found the stock box location not great for two reasons. It's up high where most of the heat goes when shut down and being high it takes forever for the IAT to cool down going down the road since the inlet air from the fork area vents somewhat miss the top of the box. The sensor is in a dead air zone where neither intake air or external air from the vents cool it quick enough back to ambient or near ambient. The temp that the engine is actually seeing in the intakes. A heat soaked IAT will lean the mixture, most noticeable after the hot engine has sit for 10+ minutes and restarted. Coolant temp could be 140F and the IAT 120F as an example on a heat soak restart situation. There can be a brief window where it comes off of the calibration warmup table and O2 sensors come online to try and correct the afr, which can be 15-1 - 17-1. Symptom is a hunting, loping idle in that transition. No O2 sensors, it will remain until the IAT cools back from bike moving down the road. Different IAT locations generally produce different temp readings, which is one reason a tune should be done, and done at the stable norm temp of that sensor and at a normal coolant temp.