I have, at long last, overcome my disinclination against spreadsheets and played around a bit.

As one of the incentives (perhaps the main one) for this kind of rule authoring appears to be a "syntax" cushioning by spreadsheet entries, I feel that additional simplifications might be appreciated. Therefore, I have modified some classes in  org.drools.decisiontable.parser, to achieve the following, in the area of RuleSet entries:
Opinions, please, and should I just release this, or would someone care to have a look and test it?