  Beta-delayed proton emission from the neutron halo ground state of $^{11}$Be
raised much attention due to the unusually high decay rate. It was argued that
this may be due to the existence of a resonance just above the proton decay
threshold. In this Letter, we use the lenses of real-energy continuum shell
model to describe several observables including the Gamow-Teller rates for the
$\beta^-$-delayed $\alpha$ and proton decays, and argue that, within our model,
the large $\beta^-{\rm p}$ branching ratio cannot be reconciled with other
data.
