For many it is, but at the same time, every little bit helps. We are all social animals and that is why you will see so many retired people joining clubs or being volunteers at charity shops and other stuff too. Loneliness is never helpful.
The famous Seer Vivekananda used to say that we cannot help anyone, that whatever we do, is to help ourselves, and yes, social interaction helps us to grow.
That said, the purpose of Spirituality is all-fulfilling; more complete, and I meet many who aren't even aware of the need for purity, yet alone the goal or purpose of human life. Generally, we are at the level of the mind: Chat, sing, praise, eat... chat again then go home to the same old, same old. The spiritual Heart is missing. I will repeat though, that everything helps.
The wise know that true Spirituality is all-inclusive. But yes, more inner work is sometimes needed. Much Peace.