Ye that's exactly the problem, it is designed for a specific range of applications, in reality it doesn't work for me.
When it's gonna rod it down you wear a goretex, when it's gonna be cold you wear a windtex, when it's warm you wear a jersey, when it's inclement you take a gilet, or you roll a goretex into your back pocket.
The days that the gabba is designed for, are in between days, showers may come and go, and you still want to ride fast. On those days you need versatility, a good quality gilet and armwarmers that can come off gives you that, a gabba doesn't. I personally sweat buckets in mine, and once it's on it's on, you can't take it off to go in your pocket.