I do have the time, but choose not to. Most of what you are talking about can be just ignored. Yes, fat goes rancid, but it is common enough by late summer that it is not a big deal. Yes building a berry patch is harder, but there's no reason you have to have one. Fruit (berries) are common enough in the wild that it's pretty easy to stick with gathering until .our fruit trees are bearing. Yes, mechanical power is different, but so long as you don't try to gear it up, it works.
But by all means, follow @Zane Mordien's advice and make the game yours. Heck, if something is too tedious for your taste, no one is stopping you from typing /gm 2 and skipping the drudgery.