I get what you're saying and I am not trying to coerce you to buy but that is how the jacket is designed when riding a bike, you don't want it too long.
As for how tight it is, is it to a point where you can't move? Is the arm hole just too high or higher than you are used to? Sometimes it's just about getting used to it.
Like with me, when I first wore Rick Owens leathers, the jacket felt real tight. I could feel the restrictions in the shoulders and felt the high armholes but now, I do not even notice it.
It's just like switching from Phat Farm/FUBU jeans to Levis 511s, initially it felt weird and uncomfortable but now it is the other way around.
That's me though, I don't want to be blamed if you buy and not able to wear it a year from now.
Give it another shot though, maybe when you aren't so swole from getting out of the gym? That few mm increase in mass after a workout could make a difference in how clothes fit.