This particular case sounds bogus, but it could come down to specific countries and their laws. Actually it did in one case where I believe the Australian courts decided that the couldn't make heads nor tails of Italian citizenship law and found it unreasonable to expect a Senator too.

More fun. The recounts happen today (they are stored electronically and publ7c domain so the news organisatiins have already done them)
One new winner is now ineligible though likely hand waved to be OK, and one elected Senator should loose their seat and be replaced though the courts are likely to ignore that as beyond the realms of the case.