When adding the Wikimedia Commons Reconciliation service to OpenRefine, the service's language does not become visible in the end user's list of reconciliation services.
If a user is interested in working with this reconciliation service in multiple alternating languages, it becomes impossible to select the right one when needed.
In contrast, the Wikidata reconciliation service does display a language code for each different language that was once selected.
Screenshots:
Adding the reconciliation service in French ... ... results in two identical 'Wikimedia Commons' listings without language distinction, while the first one was added by me in Dutch. Notice, in contrast, that the Wikidata reconciliation services I added in Dutch, Japanese and German are clearly distinguishable.