I'm getting nervous..
Why are people talking about Lyon like they're Osasuna. This team beat the almighty City at Etihad and held them to a draw at their home stadium. They equally held us to a draw in the first leg. And let's not forget that Barca in La Liga isn't the same as Barca in Europe. Suarez basically becomes a spectator so we play all our European matches 10 vs 11. Teams just have to stop Messi and they're halfway there.
Also, the first leg is no indication of how things will unfold today. Ask PSG about that.
They also lost 0-5 to PSG while having an extra man for 70 mins. Crystal Palace did even better against City than Lyon. Should that make them a top team? Lyon are a normal B level side. Good team, but that's about it. Good as in Valencia or Sevilla good.
How did Crystal Palace do better? Lyon won one and drew the other in the two legs. Crystal Palace won one and yet to play the second leg (where City will almost surely smite them). Also, I know you know domestic league games aren't comparable to UCL matches. Different mindset, approach and tactics.