Would {Sunblast Angel}'s ability destroy {Archetype of Endurance} along with my other tapped creatures?
Yes. If it does not say "target" it does not target, and hexproof requires a targeting. I'll find a ruling.
RESOLVED
114.9a (http://imtgapp.com/forum/index.php?action=imtg;area=rule;number=114.9a): Just because an object or player is being affected by a spell or ability doesn't make that object or player a target of that spell or ability. Unless that object or player is identified by the word "target" in the text of that spell or ability, or the rule for that keyword ability, it's not a target.
My first resolution!