We expected heavy elements from supernova. It’s surprising that there is 10x more heavy elements than expected. Were there more supernova? Bigger ones? Are we missing other pieces of the picture?
Is a single order of magnitude within a reasonable range of error for the calculation? Some cases that is a massive miss, but other cases that might be within the expected statistical range. In the former cases it implies something entirely missing, while the latter cases are more likely to be known uncertainties which can now be better refined.
An order of magnitude is nothing if you know anything about how astronomers do their calculations xD