NoD
A320 etc. do not have tail anti-ice because they have been designed not to need it / have been certified as not requring it i.e. either the tail does not ice up (significantly) [in fact I know it does / can], or the design is such that it does not significantly affect the overall flying characteristics when iced.
None of the "moving tailplane" equipped airliners needs it to be de-iced, as the authority of that big surface - covered or not with ice - on the control of the airplane is immense ( as witnessed by the "manual back-up" on the 320 : pitch control via the trim wheel necessitates absolutely minuscule corrections ).
See FAR 25 / 1419 and appendix C
FEHoppy
not enough V^2 for lift to equal weight.
That will cause only a descent. It certainly doesn't mean
"stall" as you would be always below alpha max.