Poor lecturers will no longer be required once everything recorded as only needs doing once and then same stuff can be used for years.
I'm trying to work out in what sense you're using the adjective "poor" there. If you mean bad lecturers, then why would a university want to use a recording of them repeatedly? If you mean unfortunate lecturers, it is far from clear that what you're suggesting is legal: the issues of performance rights are still being debated, although it's clear the copyright does belong to universities.
But, to come back to the more important part of what you are saying...
Any lecture that is still current and valid several years after it is given probably wasn't worth giving in the first place. Most of my lectures are at least partly out of date by the time I do them again the next year. Everything has to be updated constantly; some lectures have to be completely rewritten because of major advances over the previous 12 months. By the time I finished my PhD (early nineteen-nineties), substantial parts of what I had learned as an undergraduate were no longer widely accepted as being correct. And research has accelerated since then. The point of university education is that it takes students close to the frontiers of current research. That's why university isn't school and shouldn't be anything like school.
And my DD's course is 80% lectures so not a small amount.
I'm really struggling to work out what your daughter might be studying, or what the point of a course that is 80% lectures would be. How do students develop academic skills if they spend 80% of their time being told stuff?
These threads always go the same way. Parents say their kids want f2f. Uni staff say no they don't, on line is brilliant and much better for everyone. Parents disagree.
We have asked students. We have surveyed them until they are sick of being surveyed. The majority say they want lectures online and everything else face-to-face. This is what all the lecturers here are saying. I have my student feedback in front of me: they liked my online lectures and want these to continue; they hated my online practicals and workshops and will hang, draw & quarter me if I ever try to do them again, so I won't.