This capacity, joined with the historic right to have grievances settled by the Crown before approving money in support of the Crown's activities$vests in the legislature not only the formal responsibility for approving statutes but also a continuing critical overseeing of executive actions.
Grievances can be settled by the Crown, however they can refuse
the statement does not say they can refuse, it says that they have the historic right to have it settled by the crown.
( z1 contrast :ARG1 ( z2 possible :ARG1 ( z3 settle :ARG0 ( z4 crown ) :ARG1 ( z5 Grievance ) ) ) )