Leap seconds are a "problem" in that they represent work and effort. That doesn't mean we need to discard them; they serve an important purpose.
I agree with gmiller here: https://news.ycombinator.com/item?id=32229049 that the whole thing smells like Facebook's engineers wanting to save themselves some work, at the cost of generating more problems for the future.
This kind of garbage attitude is why we have climate change, covid-19 and so many other things wrong with the world. Befitting that this one came from facebook.