You’re right. They really, really DON’T want to do that.
They will go for soft targets, like schools, malls etc. Besides, these jihadi lunatics probably know that they will eventually get killed. They don’t expect to get away with it, and they don’t care, as long as they can take down as many ‘kaffirs’ as they can before they go down screaming ‘allah akbar’. This is a disturbing development, although I don’t understand why they haven’t done it before now...
Perfectly consistent with Islam.