Internal Server Error when a "Required" attribute is not supplied in request

If a request to the Match API triggers a search of the MatchGrid, the first rule encountered that contains an attribute that is marked "Required", but is not included (or without non-null value) in the input object triggers an Internal Server Error response...

debug.log:
Debug:

{SOR Name}

/

{SOR Ref ID}

No value found for required attribute

{attribute name}

skipping rule

{rule name}

Debug: Preparing response with status code 500

Error.log and response contain: Required attribute

{attibute name}

not found in request

The language in the documentation and the debug log file indicate that the 500 is an unexpected result for this condition.

Implemented at MatchService.php line 473-476
if($ruleattr->attribute->required)

{ Log::write('debug', $sor . "/" . $sorid . " No value found for required attribute " . $ruleattr->attribute->name . " skipping rule " . $rule->name); --> throw new \RuntimeException(__('match.er.attr.req', [$ruleattr->attribute->name])); }

Additionally, it appears that lines 478-479 make every attribute "Required" as defined in the Confluence page (No way to test an empty value against MatchGrid)
Log::write('debug', $sor . "/" . $sorid . " No value found for attribute " . $ruleattr->attribute->name . " skipping rule " . $rule->name);
continue 2;