...
The improvement that invokers offer with respect to methods/function calls is at least to allow the signatures of callers and callees to be freely detached - by means of Infusion's reference resolution system. However, whilst arbitrarily arbitrary numbers of contributions of configurations to a particular invoker site can be arbitrated by the framework in a fine-grained way (especially by means of options distributions), the final authorial result mostly remains a crude "winner-takes-all system" whereby the winner of the arbitration gets the right to author the invoker definition. There is a minor exception to this whereby the funcName and args of an invoker might result from different authorial expressions - but in practice this is a freedom which has never been seen taken advantage of. It's overwhelmingly likely that, for a given invoker definition, the same author will want to determine both the implementation's global function name and argument resolution at the same time.
...