Disagree, as the final day there is usually only 1 game, with the showmatch.
So it all comes down to the grand final, the longer and more epic it is, the better.
bo3? past majors it ended in 2 maps.. as there was no competition in less than 2h they ended.. we got 7 maps in the pool, and we ending most important tournament of the year with 2? I think it should show also the team who has the most variety in the pool.
Also most top Esport games are at the bo5, and it's all fine. I watched the TI8 past year, bo5, all 5 games. 5+hours, was one of the best finals ever. + 1 of the teams had to player the losers finals the same day.. so it was even more.