Never had trouble hitting small items quickly with linear movement. Human hands already have the nonlinearity required for precise movement (normally, perhaps when I get old I will turn nonlinearity back on).
You needed this for ball mice because of inertia of the ball. Now all it is doing is making you do a bunch of additional sight driven small corrections before you hit whatever you aim for, slowing you down, but you are stuck with it because you are used to it, which is because they take decades to add a checkbox. edit: and the worst case for acceleration is intermediate distances, where with acceleration if you are doing it too fast it'll not only drop precision but add randomness to the position, because back in 1990s with ball mice nobody actually thought "oh this will make the position depend on the exact time the movement starts, relative to the polling period".
As far as scroll wheel goes the problem is that it scrolls too little when you are going slow. I ended up mapping the side buttons on a logitech mouse to page up and page down so I don’t even have to use the scrollwheel, even if i have my other hand off the keyboard when reading something. I don't use the scrollwheel for getting to end of pages, I use it to scroll when reading.
I think their mousing comes from the same place as not knowing what inhibits eject. They make a decent stab at UX initially but take a very long time to address UX issues that crop up due to changes in the other technology, be it the demise of ball mice or having more applications open and users knowing less about what the apps are doing. They'll eventually show what inhibits eject, it'll just take a long time.
edit: also while I'm at it, it seems OSX Chrome's scrolling is slightly incorrect for pages that keep an element at the top of the page reducing the actual scrolling space. Which I normally wouldn't care about but my employer mandates use of Chrome for accessing company stuff like github pull requests. If I hit page down on the comments page of a pull request, it skips several lines, it's a slightly-more-than-a-page down. That is more of a google rant though, Safari seems to work OK.