There's probably a business case to justify the change that doesn't seem obvious to end users. Unless you write directly to them and ask, you may never know what that reason is.
Now, compare it with the kitchen garbage bin that you install inside the door under the sink. Every one I had purchased whether for myself or my rental properties had the mounting tabs broken. Now there's an improvement that should have been done if ever there was one. But over the course of 30+ years, those bins keep selling so there's never a business case to invest on improving it.