  We reconsider the escape of high brightness coherent emission of Fast Radio
Bursts (FRBs) from magnetars' magnetospheres, and conclude that there are
numerous ways for the powerful FRB pulse to avoid nonlinear absorption.
Sufficiently strong surface fields, $\geq 10\%$ of the quantum field, limit the
waves' non-linearity to moderate values. For weaker fields, the electric field
experienced by a particle is limited by a combined ponderomotive and
parallel-adiabatic forward acceleration of charges by the incoming FRB pulse
along the magnetic field lines newly opened during FRB/Coronal Mass Ejection
(CME). As a result, particles surf the weaker front part of the pulse,
experiencing low radiative losses, and are cleared from the magnetosphere for
the bulk of the pulse to propagate. We also find: (i) for propagation across
magnetic field, the O-mode suffers much smaller dissipation than the X-mode;
(ii) quasi-parallel propagation suffers minimal dissipation; (iii) initial
mildly relativistic radial plasma flow further reduces losses; (iv) for oblique
propagation of a pulse with limited transverse size, the leading part of the
pulse would ponderomotively sweep the plasma aside.
