Time stretching is one thing it doesn’t do and probably won’t. I assume the hardware is capable, but they don’t want to cannibalize the octatrack. I love throwing long chord samples in and randomly chopping them with lfos. Half the time I stumble into interesting textures and grooves that way.
If you’re looking for a synth, see if you can find a used A4. You can pick them up relatively cheap and it’s so deep. Makes the digi boxes feel surface level.