Holiday by Green Day Lesson

Learn to play Holiday by Green Day on JustinGuitar!

View the full lesson at Holiday by Green Day | JustinGuitar

Just watched new great lesson from Justin but have few questions.
Is it a bit simplified version and Justid didn’t mention it or what? Because he clearly simplified rhythm and dropped the shuffle and additional muted strums.
And another question about verses. I learned it before from tabs which showed minor and major chords instead of power chords in verses? I know that there’s no right or wrong way but which one is more accurate?

Quick question. When you play the intro with the mini chords (ie notes on the 5th and 2nd strings), are you muting the 3rd and 4th strings? it wasn’t mentioned in the video but sounds awful if I strum the mini chord and all the strings except the thickest ring out.