The Europa League competition may be seen as a competition that is not meant for clubs but some times we have seen some top clubs in Europe playing in the Europa League competition when they fail to qualify in the champions League as a result of not finishing among the 1st four teams in their domestic league. I think seeing the Europa League as a competition for teams that could not qualify for the champions league competition is better than regarding the Europa League as a competition for small clubs because teams like Chelsea, Barcelona and Manchester United have all participated in the Europa League and they are also winners of the champions league competition.
Before you say that the Europa league isn't for clubs that are referred to as big clubs in Europe, i want to take your mind back to the fact that when big teams in the champions league which happens to be the league for the big teams fails to qualify pass the knock out stage, they are relegated to the Europa which further gives credence to the Europa as it at that point creates a leveling ground for these teams to compete at almost same level without having to really consider their said status much before then so its actual a big league and should be regarded as such and not just any league as its the second or third most see across Europa and at a point in the world.