I’d say the main problem is that it doesn’t work while operating a phone single-handed, when you only have a thumb available, but on iPad I can see it being useful after some getting used to.
I tried on an iPad. That works but it’s really not a good experience, unless I’m doing it incorrectly. On an iPhone it’s also pretty awkward, I don’t think I will ever use that feature but it’s good to know it exists
On an IPhone and I struggle with the trackpad mode as well. I frequently might want to select a block of text, but the OS really only wants me to select to here and no more. Cannot pin down what arbitrary threshold I am missing.
That's a neat trick. It seems to only work to extend the selection to the right? Meaning:
1. Long-tap with your right thumb, drag the cursor to the end of a sentence
2. Tap with your left thumb (to the left of your right thumb) and drag to the left to select the sentence -- nothing happens
3. Drag your right thumb to the right to make sure you understand what's happening and you're doing it right -- the selection extends, yay!
4. Again try dragging your left thumb -- nothing happens.
How could Apple's human interaction people let this ship?!