No, the rope entities in TF2 are limited because they were not programmed with the same support for parenting as ropes in HL2. If you use logic in game to cut a rope from its tether point, where the point entity is placed in Hammer, it will dangle down limply as you would expect, but it will not reset each round. Only Valve can program TF2, and its source code is not available. There are other entities that do not work in TF2, such as func_rotating, and the counter function of env_global.