Oh this is a nice one! I knew about this but never tried then forgot, thanks bring it up again =)
Though, I can locate Tk-TableMatrix in 2 different versions of AS Repositories ( 5.20 and 5.16 )
Now Perl is 5.24... Is that possibly means it's really free now? XD
Moreover.. I glanced the AS Perl page again.. that content is sightly different from what I can remember before. They are now saying to buy a BS license for Professional support, where I sure they said a BS license is required for production code (but now it's gone).