Is the word 'coward' misused more often than not?

I see what the OP means - sometimes people who are referred to as cowards might not be cowards at all. They might be very strong and confident.

Of course a lot of the time they are cowards, but as OP says, it can seem like wishful thinking to apply this label without knowing enough about the person.

Bullies are a prime example - referred to as unhappy, lacking self esteem, will have no luck etc. And yeah that's true a lot of course but unfortunately some are very happy and confident and life will work out great for them. This is an unpalatable reality. No deeper reason for tormenting others than arrogance and narcissism.