Then again, your "opinion on the changes occuring" may be right the fuck out of 'er ... or you may not be fully aware of the "big" picture surrounding those changes (which isusually the case with the lower ranks) and your CWO may be trying to save your ass some embarassment and turmoil in the long run.
Note: Good luck on any Grieveance that youmay submit pertaining to your CWO refusing to submit your memo higher to the CO; by your own words, he has not ... he's "refusing to submit it as written" - there is a difference.
Without knowing your Unit, your CWO, the circumstances of the change occuring within it, or what exactly 'your opinion" and "of what that opinion" is specificlly about ... no one here can properly assist you in taking a next step.
But, if I were you ... I'd give my memo a good re-read ... and try to figure out if my "opinion" is actually reflective of "the true big picture" (vice just personal disgruntledness) and also - why exactly - is the CWO advising you to seek out your supervisors to assist you ...
I've got enough experience to know ... if the CWOs telling you that -there's a good reason for it and I suspect it won't be him looking bad in the long run were your memo to go to the CO as it currently stands.
Just my opinion of course.