Not denying she got lucky. But most people don't have their money in at the beginning. Most people invest an increasing amount over time, which is why chasing after people who get lucky can get you hurt. She happened to have a shitload of TSLA, and TSLA went donkey kong. Good for her. Lot of people saw those portfolios skyrocket. The ones that got rich were the ones that sold when the time was right, though.
I do my best not to chase money. My plan states if I get SPY average returns, I'll retire very early with more money than I need. SPY returns it is.