As far as i can tell yes. I cannot speak for every manual trans out their though. All i know is the creaking sounds and the pedal feeling spongy and odd didn't start untill after the first summer, so about 6 months into ownership.
It doesn't effect the operation really, just one of those things you do notice.
You guys got it, thanks for the correction. I've had the decreasing feel or 'sponginess' and I have taken it to three different dealerships. They have to bleed it for hours (one overnight) to try and correct. And my understanding the whole mechanism is plastic. One aftermarket clutch company was trying to use braided steel line and other beefed up components to improve this.
All around - OEM or aftermarket (of which there are few options) - this manual transmission/clutch assembly has been subpar for a $50k vehicle. I've driven manuals for 30 years in high performance applications, so this isn't my first rodeo either....