The only reason why they have the majority in the local council this time is because they poured in from Djibouti on election day. Have a look here at the polling stations for the local elections in Saylac district in 2021:
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Lawyacado, which is part of the Saylac district and which is a small village on the Djiboutian border recorded the highest number of voters, 5763 to be precise and the highest number of polling stations in the entire Saylac district, 13 to be precise, in order to accommodate the high voter turnout coming from Djibouti. Well over 50% of those who voted came from Djibouti. In 2012, the Samaroon won the district easily because the border was closed. Simple.
Do you have polling station results for the rest of the regions?