"Private Sector professionals"....    Yeah sure...   Who are they?    
"Assuming a 5 percent net rate of return"...  Net of what, besides their 1% "fee" for being managed by these unknown professionals?  And why a "net rate".  
"Assuming" is a nice term.   How can they say "5% net rate" with a straight face, as if it's obvious?    
It's a ROTH IRA, and nothing more.  But since it's "managed" by these professionals, I can just imagine the fees that seem to come up every once in a while.  It's at LEAST 1% (though it MAY go down over time - yeah right...).  
Anyone can set up a ROTH IRA without going through this system, and I would imagine it would be less expensive in the long run.