It does not matter how the data is presented - any sane person will perform analysis on the raw data and not in the graph.
It matters greatly how the data is presented for the vast majority of the population. What % of the public do you think performs analysis on the raw data? I would guess at less than 1%. You’re suggesting that most of the population is not sane.
The problem with the graph you quoted is that, by choosing a fairly arbitrary large scale, it minimises changes in temperature
But that argument works both ways. By choosing a short scale, graphs exaggerate the changes in temperature.