Right, you need to equalize a scuba mask too. The small volume in a free diving mask makes it much easier for a freediver to equalize without an air supply.You need to equalize the mask (which is why low volume is preferred by freedivers).
With scuba, you have the ability to equalize a larger volume mask , which lets you select a mask with a little more standoff between it and your face, which prevents things like the water pressing the mask against the bony structures of your face for an hour at a time.