I'd rather turn the rhetoric around. If a scientist does some research, bases a paper on it, and someone wants to attack him for not having a proper foundation, he'll say, "No, no, here's all my data; feel free to reproduce my conclusions yourself." Today, we put out publications with words: "Look what I've come up with! But I'm not actually going to share the data behind it." The more complete the datasets a scientist publishes, the easier it is to replicate their research and validate the results. Although the investment may initially seem large, we would like to encourage this, even at the cost of storing the data.
Publishing articles means making them public and ensuring they stay there for a long time, maybe a hundred years. This costs money, even if the PDF file itself has a minimal amount of data. But if we also want to make the data on which the results are based available, it costs a lot more to store it for the long term. So, the current state of affairs is rational because we don't have the capacity for long-term data storage. Of course, there are exceptions, but in general, we need to start storing more resources. Open Science says: science is funded by public money, but the results of science are not always easily accessible. So, let us try to make science more open, either to other scientists or to the citizens who pay for it directly or indirectly.
We distinguish between raw and processed data. If we think of an instrument - a telescope, an electron microscope, or a weather station, such an instrument spits out data. This is raw and usually relatively voluminous data, but it is also the only data not compromised by human eyes. Whether deliberately or unconsciously, no human has entered them yet, so they are not altered in any way.
But on the other hand, we usually need to make a lot of changes to them to get real value out of them, typically with a significant reduction in volume. Within EOSC CZ, we seek consensus within the scientific communities on what is actually valuable data in a particular domain, and in what format and volume it makes sense to store it.