People don't like it when things change. Change means things will break. Change means your way of doing things won't work anymore, and you'll have to waste time and money figuring out why. Change means that your fixes for when things go wrong won't work anymore. Change means months of hitting new edge cases. Change is scary. Once you have a solution that works well enough for your use case to succeed, your motivation…
I really, really wish that Slack would learn this. Their constant creep in features means I lose about a cumulative hour every other week trying to do something that I once knew how to do.
I sincerely believe IT people of the future will look back unkindly on this trend.