Why would it? Do you know how much it costs to finetune one of these models for such a niche language? I'm not just talking about the cost of training, but also the cost of acquiring data because there's much less data about niche languages.
96 x A100 hours for a finetune according to the article.
The cost of the dataset curation for a given language is hard to quantify as there are many unknowns. However, it seems perfectly crowdsourcable to volunteers.