Only Microevolution can be observed.
I know this borders on OT, but I can't resist.
In the past 20 years, a bunch of lizards have been observed to have undergone "macro"evolution.
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The cecal valves are an evolutionary novelty, a brand new feature not present in the ancestral population and newly evolved in these lizards. That's important. This is more than a simple quantitative change, but is actually an observed qualitative change in a population, the appearance of a new morphological structure.
It's easy to see how body part + body part + ... = new critter.
It's hard to see how creos could brush off evolution of a new body part as "micro".