Sure seems like a simpler and cheaper option to adjust and lubricate the headset on the 2015 than to buy a several hundred dollar stabilizer. Even if you have to replace the headset bearings (assuming you do the work yourself) it will be cheaper.
If the bearings get loose, that’s when you can end up with damaged ones due to them having the room to hammer the races. Another reason to look into and inspect the 2015.