There are two types of reflections off of Starlink satellites: diffuse and specular. Diffuse reflections occur when light is scattered in many different directions. Imagine shining a flashlight at a white wall. Specular reflections happen when light is reflected in a particular direction. For example, the glint of sunlight off of a mirror. Diffuse reflections are the biggest contributor to observed brightness on the ground, because diffuse reflections go in all directions. You can see diffuse reflections as long as the satellite is visible. This is why Starlink satellites can create the 'string of pearls' effect in the night sky. It's a little counter-intuitive, but the shiny components of the Starlink satellites are a much smaller problem. Whether diffuse or specular, having a high reflectance helps the satellites stay cool in space. When sunlight hits a specular surface of the spacecraft and reflects, the vast majority of light reflects in the specular (mirror reflection) direction, which is generally out toward space (not toward Earth). Occasionally when it does, the glint only lasts for a second or less. In fact, specular surfaces tend to be the dimmest part of the satellite unless you are at just the right geometry.
In January 2020, SpaceX demonstrated Crew Dragon's in-flight launch escape capability to reliably carry crew to safety in the unlikely event of an emergency on the launch pad or at any point during ascent. SpaceX has completed over 700 tests of the spacecraft's SuperDraco engines, which fired together at full throttle can power Dragon 0.5 miles away from Falcon 9 in 7.5 seconds, accelerating the vehicle more than 400 mph. 59ce067264