Pace of adoption also seems to be accelerating , from 2009 to about 2016 it went from 0.5 to 1,5 (+ 1 percent), from 2016 to 2023 it went from 1.5 to 3 (+1.5 percent), the adoption also seems to be at least doubling about every decade (which might indicate a "word to mouth" growth pattern.
Because original is incorrect. For the first increase 0.5% to 1.5% is an increase of 200% while the increase in percentage points is 1. The reason it's important is that it can skew the readability of the statistics to a degree where the numbers at best are confusing and at worst are misleading. In your case you accidentally understated the significance of the increase.
Something to keep in mind with these graphics are that the scales are hugely different and more notably that the numbers do not add to 100%. Also the percent vs percentage point thing mentioned by @VonReposti@feddit.dk.