Imaro
Legend
It's the "melee damage" build, but still not completely losing out on its basic leader function, namely basic healing ability/option and Channel Divinity (which could also be used to focus melee damage), just not geared towards extra healing, etc. It's an offensive vs. defensive option.
So any "melee damage build" is a striker... regardless of how much damage they actually do? What about primarily ranged classes like sorcerer or warlock who were labeled as strikers?
Edit: It's almost like the way in which you're using the label striker is meaningless...
The roles were only general and secondary roles were pretty open, depending on player choices, just like now.
So what does this mean? It seems that 4e fans are claiming that roles are simultaneously mechanically important enough to be attached to specific classes and influence what a particular class is good at (mechanically)... while at the same time, claiming they don't create restrictions and are only the most general of labels that don't really restrict what you can do or use a class for...