Yeah, I'd swap my auto trunk lifter I think, even though I would miss the foot sensor.
As you say the OEM kit has the benefit of being warrantied in its own right (perhaps only for a year if your car is otherwise outside warranty, but even so), the car will be programmed to be cognisant of it - so no more "fudging" the CAN signal to read the brake pedal status to enable a close option, it will sleep when the car does, it'll work during Lightshow (if that's your bag), etc, etc.
It's a no-brainer in my opinion even though I'm perfectly happy with my EVOffer trunk kit.
To each his own I suppose.
I love my 3rd party (hansshow $399)- revision 9000 trunk opener better than the Model Y's OEM and it has survived 3 years of software updates with no problems. It works when the car is sleep and wakes it up with the foot sensor. My brothers Model Y doesn't do that for some strange reason. Imagine walking out to your Tesla in the rain with a bag of groceries and the foot sensor doesn't work. Maybe his is defective, but mine isn't
To each his own I suppose.