They're fair comments of course.
As a legal functioning entity, a company usually ceases to exist in any form once dissolved, but I am aware that companies have been reinstated for short durations, usually by order of the High Court, but this is where a past legal matter regarding actions against it's former Directors is required, or where funds have turned up/been produced to settle Inland Revenue or VAT debts against the company, or something of a similar significant nature. I imagine it's highly unlikely someone's going to use that mechanism for a bit of content copying.
Having said all that, I wouldn't suggest pretending to be the former registrant/company in those circumstances, because although 'passing off' couldn't be applied (because the company has ceased to exist), the more serious offence of 'deception' would probably kick in.