One thing I wonder about the tv show hindsight

Shouldn't becca be extremely worried about the butterfly effect and how it can affect the 00's and 2010's. She keeps blabbing to lolly about future inventions like the iphone and the notebook. Then she scoffs at a guy in a bar because he works at enron. What if that guy decides to quit his job and he invents something different or goes to work at a different company. What if that enron guy was going to hit on another girl but he hit on becca instead. What if that other girl was his future wife and becca just blocked him from meeting her. Yes I over think things when it comes to time travel Also becca could tell lolly to invest in apple stock