Going after the easiest target is not cowardice, it is elementary military tactics. In battle, your objective is not to appear brave, your objective is to take out enemy targets. If you can take out 10 lightly-defended high-value targets with less risk to your forces than trying to take out one highly-defended target, then that's how you go.
They are trying to take us down, not demonstrate how "brave" they are
They think they can win.
Hopefully, they're wrong.