It is normal at most clubs for some fans to move for Cup games so it seemed okay, however Andy Holt's comments have no regard to he recently published club charter so he would have been better apologising and saying it is a one off. With the spelling I doubt it was widely read
"HOME CUP COMPETETIONS
Season ticket holders can claim their allocated seat during a priority sales period. After this specified period, any unsold ‘reserved’ seats will be made available to all other home supporters at the discretion of the club."
http://accringtonstanley.co.uk/wp-co...-17-Rev-A1.pdf
Most would put something about ST holders not guaranteed their own seat, although the club would endeavour to do so.