The issue is less about squeeze when going deep and more about evacuating the air when ascending.
The Ultima DGS and the Si-Tech systems come with little spaghetti like silicone tubes about 8-inches long that can be fitted under the wrist seals so that one end is in the glove and one end is in the suit sleeve. The inner diameter is only about 1mm.
I have dived my gloves system down to 35 meters without the equalization tubes in place and while the gloves did "squeeze" it did not cause discomfort or any significant changes in dexterity.
The pressure difference the deeper you go gets proportionally smaller from one depth to the next, so there should not be significantly more squeeze at 40 meters than there is at 30 meters.
Upon ascent though, air that seeps/burps past the wrist seal into the glove has no place to go. On one particular dive a couple of months ago, my buddy team ascended to find a bunch of people in the quarry ascended just before us. We had to wait our turn, floating, to use the ladder to climb onto the dock. No worries, I just added air to my suit and my wing and just hung out....but everytime I raised my arms, the air bubble that was concentrated around my shoulders and arms would seep past the wrist seal into the glove...I had blue "mickey mouse" hands by the time it was our turn to climb the ladder. I had to be careful not puncture a glove in their inflated state as I could not deflate them until after I got out of the water and could separate my dry gloves from my suit. It was warm and dry, but a bit dysfunctional.
I have dived with the tubes ever since and not had any further issues.
Some divers will use coffee stirrer straws, some will use a small length of thin bungee cord, others use the thumb tab on the wrist of their undersuit, as examples of ways to disrupt the seal to allow air equalize in and out of the glove.
-Z