Introduction to Web Accessibility: why important

Introduction to Web Accessibility: "Why Web Accessibility is Important"

Paragraph  2, Sentence 2 reads:
"Currently most Web sites are designed with accessibility barriers that 
create unnecessary difficulties for many people with disabilities or even 
prevent them from using the site at all."
"... are designed with ... " seems to suggest that inaccessible design is a 
conscious decision (i.e. made by evil content providers) when we generally 
accept (don't we?) that much inaccessible design happens due to lack of 
awareness.

How about:
"Currently most Web sites have accessibility barriers that create 
unnecessary difficulties for many people with disabilities or even prevent 
them from using the site at all."
This is simpler and less confrontational, in my mind.

Cheers,
Chuck Letourneau