Yes, Johnysid, even now some omissions ill consequences, or defects in draughtsmanship, go unnoticed by the Commons. Some are unnoticed by anybody until they reach a court; I once found that exactly the same thing had been described in different terms in the same Act, with the consequence that the Court of Appeal was obliged, contrary to what Parliament had clearly intended, to treat 'it' differently in two different sections.
But since the Commons can still force through bills, Lords' detected errors or not, revulsion or not, the good function of the Lords should be only as a reviewing committee. It's commonly the Lords with long experience of law who spot errors such as the one I've given. Other Lords spot practical errors of consequence in implementing the bill. We don't need a full House to perform this task. We could have a committee, drawn from those of practical and legal experience in the relevant field, to refine a bill. Their recommendations could be quite fast in the making, to be debated and accepted or rejected by the Commons. The Commons' decision would be final. The present system is cumbersome, slow, the more slow if the Parliament Act is invoked, and susceptible to political, ideological, denial of the wishes of the lower house.