At what point does a team stop becoming a big 6 team?
They haven't won the league in 16 years. The highest they finished was second and that only happened once.
They haven't passed the Champions League round of 16 since 2010. They haven't even made Champions League in 5 years. They have no European trophies and only one Champions League final.
How are they still considered top 6 when they haven't been there in 3 years?