I wanted to point out that by making the change you did because of the MCPE-33628 post, it broke all automatic kelp farms that take little processing power to have. The person in the other post could have simply used magma blocks to pull down items were needed. Where as you cant use soul sand in a automatic kelp farm because you cant plant kelp on it, only gravel. Yes, their is a style of kelp farm that can be built without using falling water, but it requires a ton of red stone and Dispensers to make it work which would degrade server performance when trying to make something equivalent to the now broken kelp farms. I'm not sure if making this change was intentional to brake the automatic kelp farms, or if it was a unforeseen consequence of the change. But it would be nice if the change was reversed or something else done to fix kelp farms so that they can be like they were without having to use red stone.

Also here is a link to a single wide example of what I am talking about that was working before the change. https://www.youtube.com/watch?v=emBSZ_C5Dvw