This is good news. The weapons are really nice heirloom pieces and having them available from the word go will be great. I spent a lot of time getting the Cleaver, Warstaff and Warbow and it will fun to use them in S’lands from both an RP perspective and a gameplay one.
It’s a pity they aren’t currently obtainable generally - I’m not sure I like the idea of heirlooms being time-restricted and although I have them myself, I’d not be concerned if they could be still obtained by doing the raids at top level. Sometimes I think Blizzard needs to rethink how it deals with items like this, that benefit a character over its entire levelling experience and not simply as a cosmetic or limited use thing.