Not quite sure why the person reporting to be a GP is getting so much flack, quite correct advice. They're not in a consultation now so can be more direct in speech, the information would presumably be delivered not quite so bluntly when talking through these plans with most patients.
Using strong painkillers for flair ups/at the point of illness or injury is a sensible approach and good to have some available. Taking them daily for a chronic 'normal' level of pain just doesn't work, it's just feeding dependency, misery and an early death. But people can't see this in themselves and believe it does because they're feeding the dependency, it's much easier to see from the outside. I'm not a GP but do shared working at a practice, it's really really common for patients to die due to these drugs and I see the genuine distress when another one dies they've been trying to get to come down off the medications they've historically been prescribed. It's not some rarity that only happens to homeless drug addict stereotypes.
The evidence is clear and shows when people with debilitating chronic pain can access good pain clinics/therapy/physio/exercise programmes and stop the majority of the pain meds they'd previously insisted they needed to function that their quality of life massively improves and pain affects them much less.
However having access to all that is difficult, it's expensive, it takes time and effort from all involved, the services aren't available in all regions and this is a failing of the health service when the provision is not there.
It's very very easy to prescribe pills - consultation can be over in less than 5minutes, then stick it on repeats and rarely have to see them again, up the dose every when they call to report that it's no longer effective as they've grown tolerant, easy peasy. The GPs having the difficult conversations, trying to help people access pain clinics etc looking to tailor solutions, trying to best understand your pain and the exacerbating factors are not being lazy or poor, they're the ones who are thinking about your future and doing their best to help you have a good one.