You can get away with mistakes and missteps in business if you don’t make big promises.
A more laid back, low expectation business has wiggle room for screw-ups but limited ability to grow fast.
You can get away with huge, even unrealistic promises if you never drop the ball on things.
A more ambitious, high-risk business can grow fast but has almost no wiggle room for screw-ups.
You can’t have both at once. You’ve got to choose. Would you rather be able to drop the ball from time to time and have everything be ok, or would you rather go big?
Neither is right or wrong. It depends on your preferences and priorities.