I don't think eliminating length restrictions would be beneficial even if they are no longer necessary. You can already basically have as much room in a supplem

I don't think eliminating length restrictions would be beneficial even if they are no longer necessary. You can already basically have as much room in a supplemental/supporting section in many journals to include extra data/methods if needed. But if you extend the main article people will ramble on and in my opinion it will make it harder to read the articles for the intended audience (other scientists) with probably only marginal benefit for a broader audience.