I cannot comment on SilverLakes since I was not there, but Northwestern had a women's coach at a 1:00 PM Friday game at Surf, sitting around 20 feet from me holding our team pamphlet. And while I did not hand this coach a pamphlet, my daughter's coach had a conversation with the Cal coach (meaning Berkeley, though my friends who went there seem to call it Cal or California) after her 1:00 PM Saturday game.
Unless you have representatives at both events taking attendance, I would be careful making claims on who was or was not at either event based on posted lists or coach/tournament director say-so.