WCAG-PDF technique for coding accessible complex tables?

Hello, 
 
I am wondering why WCAG 2.0 - has no techniques on coding accessible complex tables in PDF? 
 
The only techniques regarding tables are PDF 6 - table elements and PDF 20 - repairing mistagged tables. 
On the other side, H43 technique and F90 failure applicability is for HTML and XHTML.
 
Does this mean that structuring a complex table using table, th, td elements is enough to make it accessible in PDF ? 
 
Thank you,
Rabab