I could see that being "barely noticeable" if the traffic you are moving through is also moving. However, the slower it is, or if it is stopped, it is really really obvious when you just "cut to the front of the line", which is how most drivers here see it and why they are butt hurt. And, I'd be highly skeptical that rolling past a cop who is also stopped in traffic would not get you a ticket (at least it would me, but then I'm a cop magnet and have gotten speeding tickets for 5 mph over posted...)
For me the greatest benefit to being able to split or "filter" is in very slow moving or stopped lines of cars. I don't really care to do it at speeds above 30 mph. The having to be in first or second and on/off the clutch in slow moving traffic (never mind the heat in the summer) is what I would gladly like to avoid. But to be able to maintain 50 when traffic is going 30....eh, I don't care.
Yep, that is where the most butt-hurt happens, cause they can "see it", but really it is the safest for all.
Getting "us" to the front of the line is the safest for us motorcycle riders as it gets us out of the way of "car" traffic. We are not mixed into the "car" traffic so we do not the worrie of being "moved in on" by the "car traffic" at lest until we run into more "car traffic".
It is also safe for those in "car traffic".
WTF? How is that possible?
Simple, those pesky folks on motorcycles are no longer "in line" so they, the car drivers, don't have to worry about us.
We ARE a bit harder to notice in the rear-view and side mirrors. That IS something I have noticed driving a "cage".
Of course that is based upon drivers who actually USE the side mirrors. Unfortunately there are some who NEVER look before changing lanes.
Getting us out front gets us a way from those drivers. /\
Of course that is just based on my observations on 42 years of driving a cage...and 44 years of riding them there motorcycles.

Your experience might lead you to a different conclusion.