Insects would microevolve rather quickly in the absence of numerous predators.
Time dilation works on distant observed events as predicted from their red-shift and a constant lightspeed.
The universal speed of light (relative to different spacial frames) is a function of Planck's universal constant. The observed speed of light is always going to be the same as the speed of light in the observer's frame of reference. If object and observer are in the same time frame, there's no difference (between observed c at object and c at observer). If c was once greater, one would observe "fast" space as if it were older than it really is. If I really wanted to prove my theory, I would need a to examine 'h', not c.
As to the experiment, it shows that:
A. The principle of superposition: ". . . at the time when any given stratum was being formed, all the matter resting upon it was fluid, and, therefore, at the time when the lower stratum was being formed, none of the upper strata existed."
B. The principle of initial horizontality and
C. The principle of strata continuity:
are all disproven because: "Strata can form laterally and vertically at the same time; 2. Strata can form in the same way as sequences of facies; 3. Strata are not always a measure of chronology. "
- quotes from http://www.icr.org/pubs/imp/imp-328.htm
Of course they aren't, as the entire story is a myth that wasn't thought through at any level by the people who wrote it (who had no knowledge of the diversity of species anyway). They didn't think about the practicality of 8 people looking after a world's ecosystem in a 450ft wooden boat with one opening 2ft square in the top deck. They didn't think about what everyone would eat when they disembarked. They didn't know that there would be no topsoil (requires live earthworms) for decades, or what the predators would eat the moment they disembarked etc etc etc
I note you haven't explained how marsupials got back to Australia, or knew how to go back there, or how they survived on Antarctica.
Non-answer gobbledegook about light-speed noted.
Stuff about irrelevant ICR experiments
None of the stuff that you mention explains the phenomena that are seen in real strata in the real world, like interposed fully-formed fossil coral beds, like fossilised burrows, like thick layers of powdery material where the powder is so fine that the grains take years to fall onto the sediment, Like interposed igneous strata, coal formations, like radiometric dates that get steadily and consistently older the deeper down the column we go etc etc etc.