Of course the cart can not enter dungeons, so it will not be possible to loot 20 goblin shields from a dungeon without some serious running back and forth. But I don't think I would miss that.
I would miss it! I would like the opposite: The option to remove encumbrance so that I can carry all my loot!
Watch to about 2:05
This was such a great acknowledgment of the issue (Solasta). The only developers to balance immersion and convenience. I am good with paying "porters".