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The low energy mass spectra of the direct $SU(N_c)$, $\,N_F=N_c$ $\,{\calN}=1$ SQCD theory and its N.Seiberg's dual variant [1], considered as twoindependent theories, are calculated in sections 2 and 3. It is shown thatthese two mass spectra are parametrically different, both for equal or unequalsmall quark masses $m_{Q,i}\neq 0$.  In [17] the very special non-SUSY lattice $SU(N_c)$ QCD theory with $N_F=N_c$scalar defective "quarks" in the unitary gauge,$\Phi^i_{\beta}=\delta^i_{\beta}(|v|=const > 0)$, was considered by E.Fradkinand S.H.Shenker. The conclusion of [17] was that the transition between theconfinement and higgs regimes in this theory is the analytic crossover, not thenon-analytic phase transition. And although the theory considered in [17] wasvery specific, the experience shows that up to now there is a widely spreadopinion that this conclusion has general applicability.  This model used in [17] is criticized in section 5 of this paper asincompatible with and qualitatively different from the standard non-SUSY$SU(N_c)$ $N_F=N_c$ QCD theory with standard scalar quarks $\phi^i_{\beta}$with all their $N^2_F$ real degrees of freedom. It is emphasized that thismodel [17] is really the Stuckelberg $SU(N_c)$ YM-theory with no dynamicalelectric quarks and with massive all $N_c^2-1$ electric gluons with fixed byhands nonzero masses. There is no genuine confinement in this theory, it stayspermanently in the completely higgsed phase only. And this is a reason for acrossover in this theory. While in the theory with standard scalar quarks thereis the phase transition between the confinement and higgs phases.  Besides, in section 5, the arguments presented in [2] by K.Intriligator andN.Seiberg for the standard direct $SU(N_c)$, $N_F=N_c$ $\,{\cal N}=1$ SQCD insupport of the crossover from [17] are criticized as erroneous.

Mass spectra in ${\cal N}=1\, SU(N_c)$ SQCD with $N_F=N_c$ and problems with S-confinement