I can't tell for the I-Pace, but I faced the exact same dilemma when configuring my Model S over 6 years ago, more than a year before it arriving in the showrooms. I ended up choosing for the passive suspension. I have driven versions with active suspension many times since, and in my experience, in daily traffic I'ld be hard pressed to tell the difference. If anything, it's a bit more precise.
Did I ever wish I'ld chosen active suspension? There were times. The Model S is a pretty low riding car - I keep being surprised every time I hear Ian Callum say that the batteries in the floor force the cabin and riding position upward, because getting in and out the Model S I sometimes wish it had a bit higher seating position. I guess the way they achieved that is by having relatively little ground clearance. In combination with the long wheelbase, this causes a mild "bottom scrape" every now and then on (speed)bumps.
But there was one time I really cursed myself for not having active suspension. I was in a narrow street where the houses had their garage under the house, with a pretty steep ramp going down from the street to the garage door. I needed to turn around, so I backed halfway onto one of those ramps, and just when I thought I was in enough to easily pull out and leave in the opposite direction, I heard an awful scraping noise. After that, the car was stuck on the ground, exactly in the middle of the car. The front wheels were tightly on the ground, but the back wheels just touched lightly, and on my (early) Model S, only those rear wheels are powered. No matter what I tried (and with the help of some of the street's residents we came up with quite a few ideas), I couldn't get away. In the end I had to be towed out - with a scraping sound that I'll never forget.
The I-Pace has a long wheelbase too. But I think it has a higher stance, and it is four wheel drive, so it probably won't get caught in a situation like that even with passive suspension. But for me, the experience was thus that I will from now on choose active suspension every time I have the the option.