I'm going to try to keep this as close to on topic as is possible.
The reason that experiments such as those included in your examples are at best, considered worth a small chuckle or two, is that they simply do not reflect what is seen in the real world. They are cute little elementary school level demonstrations of how one process works.
But the real world is far more complex.
For example, if we look at the Green River varves what we see is the same process getting repeated for millions of cycles. Yes, the experiments you point to might explain one of the cycles, but what about the other three million nine hundred ninety nine thousand, nine hundred ninety nine cycles?
The little experiments you point to don't answer the questions like how to make sand, how to make salt beds, how to build the Grand Canyon (not how to carve it away but how to build the structure in the first place).
Uniformitarianism rules because no one has EVER been able to present a model that explains what is seen better.
Anyone so limited that they can only spell a word one way is severely handicapped!