The notch is a compromise for sure, but it was mostly to make people feel better about buying the 8/8+ instead of waiting. A “gate” situation implies that something unexpected surfaced and sabotaged the utility of the device. The antennagate was a good example of this. You couldn’t have known, before people started using the phone, that holding the phone “wrong” would caused weak reception.
The notch, on the other hand, is an obvious design choice that anyone can choose to avoid if they don’t like it. It’s not some type of scandal, and Apple will not be handing out cases to hide the notch. People will get used to it.