Too dominant was Barcelona in the first leg 24 Goal Attempt vs only 5 for French side, home-goals are just a matter of time. It's very likely that this game can turn to goal fiesta and both team would find a net. In first leg wee have seen 13-11 Fouls and 11-13 Free Kicks. 

About Free Kicks here is some bucket of stats:

19 vs Rayo LL
19 vs Real CDR
4 vs Valencia (!) CDR
15 vs Sevilla CDR

19 vs Tottenham CL
22 vs Inter CL
12 vs PSV CL

Lyon allowed

21 vs Monaco L1
12 vs Shakhtar CL
7 vs Hoffenheim CL

Data is not ideal but definitely lead the path of potential overish number. Taking to consider that both will kick off from dangerous 0:0 result from past first leg every next goal will be crucial and important in order to qualification to next stage. Found this bet as a perfect alternative for fouls which should be mark in numbers in this tie. 

I see value on this line and see probabilities very high, at home the Catalans only one time of 18 parties has not reached asked amount of free kicks. From other side Lyon playing away from home only 3 times out of 18 have not conceded more than 12 free kicks. It also counts the offside!

From tactical point of view Valverde change vision of football and the way how FCB has to approach, they came out from very safe and defensive tactics against both occasion versus Real Madrid, turn out as a good choice but fans will never accept Barcelona playing like that,