Dutch person here (have been told we are some of the most direct people): my experience is that it is not the words but the intention. E.g. the 'give more training' example: 'I do not understand why we do not give more training. It seemed to help with Steve, why are we not doing more so'. And being genuinely interested in the answer. Do not assume you are always right in assuming more training helps, but ask yourself why it may not be. Having an open mind can really help. And perhaps you were right to be astonished in 95% of situations, in 5% (or more) you might learn something. Other things are certainly true: it may be better to ask that question in private, as opposed to while the leader addresses the whole staff.