Hm.  The PR states that if fixes exception this is why I've seen no reasons to modify rows.
If you want to change Gherkin to always fill the table I'd suggest to do this in Examples and Step, but I'm not sure 
this is what we want to do.  At least consequences should be considered (e.g. how this will affect tables diffing).
Thus I'd suggest to limit this PR to fixing the exception and discuss the suggested change on our mailing list.