They didn't build it because they didn't need a lot of burst for their utility-splitpush based TF playstyle. CDR and a Zhonya's was probably more important in teamfights for them since they had damage on other sources.
Navizel wrote:Is Lich Bane still a viable item? I haven't seen Link and Hai building it on TF last playoffs. Just curious.
Overall it is still a viable item and champions that build it (Fizz, TF) still desperately need it if they want to dish out damage.