Even still. There's no way that 60% of those with a million dollars in the market made major movements of any kind. It's the people with less money who are more likely to make major movements like that.
If, instead of "moved their money" they meant "shifted a small percentage of their investments" maybe so. But that could largely be true because of a high percentage of older people specifically moving money to lower-risk investments at very volatile times.
The vast, vast majority of those with a million dollars in the market made zero major changes before, during, or after the election. That's how they have ended up with a million dollars in the market.