You can estimate the trustworthiness by analyzing the motives of the source. YLE is the Finnish equivalent of BBC. They have a record of being extremely trustwo

You can estimate the trustworthiness by analyzing the motives of the source. YLE is the Finnish equivalent of BBC. They have a record of being extremely trustworthy (this can be analysed retrospectively). Do they have a significant enough incentive to lie about this subject to throw that trust away? I see no such motive here, thus it's highly probable that the source is not intentionally lying. The same is true when it comes to the Finnish Government.