I can't speak for other fields, but in statistics and machine learning, it's not uncommon to see at least some practical experiments or simulations alongside theoretical results, or at least some discussion of practical considerations.
There are definitely plenty of pure theory papers as well, and pure theory is still a contribution. However one would at least hope to see subsequent work that does focus on the practical aspect.
There are definitely plenty of pure theory papers as well, and pure theory is still a contribution. However one would at least hope to see subsequent work that does focus on the practical aspect.