Wasn't Sakura attacking from the Byakugan's blindspot? Would an expert tactician like Kakashi fail to include such a critical achilles heel in his plan?
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From that distance at least, Sakura couldn't have completely fit in her blindspot. The only explanations include:
1. PIS or
2. Kaguya's 360 vision wasn't activated considering she never saw Sakura and Kakashi as a threat.
The second one is more likely imo.. And yes. Even after byakugan is activated, the user can add additional vision types on top of what they are using. [
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