It depends. To me, it sounds like a good option to have, even if you only exercise it once in a while. Sometimes I wear a matching shirt and pocket square, and I don't feel the least bit weird about it. If you're wearing a navy suit and a white shirt, matching tie and links may come off as uninspired - just as a matching solid burgundy tie and pocket square would - but if you're wearing a busy shirt and suit, it could serve to anchor the ensemble - just as a matching solid burgundy tie and pocket square could. The way I see it, even if your tie matches your pocket square or cuff links, at least you have made the decision to wear a pocket square or cuff links...