Object-oriented design (OOD) requires that you shift from thinking of the world as a collection of predefined procedures to modeling the world as a series of messages that pass between objects.
Object-oriented design is about managing dependencies. It is a set of coding techniques that arrange dependencies such that objects can tolerate change.
If lack of a feature will force you out of business today it doesn’t matter how much it will cost to deal with the code tomorrow; you must do the best you can in the time you have. Making this kind of design compromise is like borrowing time from the future and is known as taking on technical debt. This is a loan that will eventually need to be repaid, quite likely with interest.