No they should not get a lifetime ban! But I could see a DNF for unauthorized radio use as it is blatant cheating, disrespectful to the other competitors, the organization, his sponsors and his reputation. Kawa is the best racing pilot the world has seen, not sure why he would put winning above his exhausted reputation. He has nothing to prove.

Disappointing, but not surprising. The small penalty probably reflects an unspoken acknowledgment that the practice of team communication is widespread in GP.

There are enough different ways to communicate electronically these days that it ought to be easy to do it and avoid detection. This suggests that the Polish team really did not care if they got caught.