It’s too simplistic.
Spirituality is an impulse, an inclination, an intuition. By its nature, its nebulous, as @Seek said, because it’s a yearning for that which doesn’t belong to the domain of definable things.
Religion is the cluster of forms that tend to accrete around spirituality. If you have a particular way of expressing your spirituality. then you have given form to it, and you have a basic sort of religion. If you have some particular idea about what this yearning is for, then you have given it some form and now have a basic religion. These forms may be yours alone, or they can also be shared among others who also find that they’re fitting expressions of their spiritual impulse. They may be very loosely structured, or they may be tightly organized.
I get that people want to dismiss entirely these various systems of forms that have grown up around the spiritual impulse because they’ve seen how wrong this enterprise can go. But the spiritual impulse has to be expressed in some way. If it has no connection whatsoever to the world of form, then it’s nothing. Just because you craft your own personal religion doesn’t mean that you’re somehow above religion and have smugness rights.