Another consideration is that anything that is soldered down ought to have plenty of headroom. That is particularly so for a device that is marketed as having a long support life.
If you read the discussion about moving ~purism to the uSD card, it becomes apparent that there may be things that are better left on the eMMC drive i.e. if getting it onto the uSD card is too “hacky” for Kyle then it’s probably too hacky for most. (I’ve put “media” files onto my uSD card and that is probably the ideal use i.e. take up lots of space and it doesn’t matter where they are located.)
I’m not at all saying that 32 GB is insufficient, only that we will discover over time how it pans out.