Ok I just noticed that the 1 bot sets the ban the other kicks.
I have Tbot1 Tbot2 Tbot1 is the main and Tbot2 is the leaf so I am not sure if this makes a difference.
Tbot2 sets mode: +b *!*TEST@Cb79c.net.cable.rogers.com
Tbot2 sets mode: +o TEST
Tbot1 sets mode: +o TEST
*TEST was kicked by Tbot1 (Banned)
In this case, the bot doing the kick sees the ban being placed on the channel, rather than placing it there itself, and hence uses the standard reason.
Which I believe I already mentioned in an earlier post?