By considering a uniaxial stretching coupled with an inevitable uniform radial contraction for incompressible flow, a straightforward comparison of the stretching response for several popular vortex-identification criteria aluminum lotion and the recently proposed vortex vector (Rortex) is presented.In addition, the outcome of the triple-decomposition method in terms of the residual vorticity tensor is employed due to its planar coincidence viqua-f4 with Rortex.The stretching sensitivity of the examined schemes significantly differs and, consequently, reopens the persisting vortex-identification problem that the requirement of orbital compactness of the motion inside a vortex contradicts with the allowance for an arbitrary axial strain.