Oh he's definitely a perfect Face of the group.
He is usually the first member that grabs the attention for anyone that's new to SKZ and the first member they'll recognize (mostly because they utilize his deep voice well + charisma). I see being easily recognizable and a stan-attractor as important as a FOTG. Which he is. Plus, like you said, he does promote a lot by himself.
Also Felix is just super likable. Simple as that. Of course his voice and his looks makes him likable first glance, but then the way he carries himself and his aura comes off as very warm and kind, so even people who aren't fans of SKZ still will like him and see him in a positive light. A good image to represent SKZ.
The perfect analysis
I totally agree with you!
