I don't think the shirt-pulling stuff is poor officiating; it's clearly the case that refs are extremely reluctant to give penalties for it unless it is absolutely blatant to them. I have been a ref for many years, and I can absolutely assure you that this kind of shirt-tugging is extremely difficult to spot; and a ref cannot give a penalty unless he is absolutely certain that an offence has been committed. Refs don't like to give "soft" penalties, hence the general inclination on the part of all refs to simply let it happen.
In any event, CB's point remains more than valid, and that 'Pool were the worst offenders for shirt-tugging. No, two wrongs do not make a right, but it is somewhat pathetic and hypercritical of Roy to come out and claim that 'Pool ought to have had two penalties for shirt-tugging, when £ity should, but the same account, have had at least six.