You're the first person I've heard from on the ekar gruppo. Was super interested in giving it a try, as the only modern campy drivetrain I've ridden is Veloce. I honestly can't see myself using much more than 13 gears, but if I'm going to drop a few thousand dollars on another bike, I want it to be able to do anything and everything, so it seems a bit safer to opt for a 2x just in case.
I've also noticed that it can be difficult to shift Sram while riding particularly bumpy terrain, so I've been leaning GRX without really giving the ekar a fair shot. I'm in no rush for a new whip, so I'll probably hope to find something to test ride before buying again.