While the previous ruling party was bad, they did win 55% of the vote and that equaling the same number as a party who got 41% is ludicrous.
Without getting too off topic, I wonder what the worst offending elections are. Wisconsin in 2018 and South Africa in 1948 come to mind.
With elections that weren't absurd gerrymanders (as seems to be the case in Samoa; the district borders are literally just straight lines), the answer is probably Canada 1979. Liberals won the popular vote by 4.2 points, but PCs won 22 more seats and almost got a majority.
Why would simple straight lines be an absurd gerrymander in a Samoan context? Especialy since it seems that no districts cross itūmālō boundaries and given the geography, straight lines are simply creating a bunch of districts running from the mountains to the ocean...