At my work it was pointed out that people learn through three methods one is education such at schools, colleges or university courses but there's on the job or experiential learning and a third. The proportion of which actually works out that education courses is the one learning method you use or benefit the least from. This is a very inaccurate summary but the biggest point is that you actually develop more by doing it than by sitting through organised courses like a university degree course.
In my case I have two degrees at two different UK Russell group institutions. The masters was from a university who's department I studied in scored higher than the equivalent in Cambridge in the research ratings. Cambridge University is possibly considered to have the best materials science and engineering department in the UK and is comparable with the best around the world, but mine scored higher for research quality.
Has that worked out for me? I don't think I use any of the technical side of university only perhaps the soft skills I learnt. I think I learnt more soft skills outside of university education though. I have no doubt in a tickbox recruitment system these two degrees have helped me but in the job I believe firmly that I benefited more from being in the workplace and doing a job in the quality field. With more and more big companies looking beyond tickbox screening I believe a degree will be left to smaller companies and the less enlightened companies. I think we're probably in transition so it is still a advantage right now.
BTW my employer is recruiting into quality. Many put degree as desirable only and some jobs say degree, HND or equivalent is desirable. I went for one with degree but I got taken on at a lower grade with a view to be developed up to the grade for the job. I didn't have the experience apparently. However, if my first reporting to the higher ups is anything to go by it seems I'm doing a more thorough job than those at the next grade with years of experience. So I seriously question the experience POV.
In my case I suspect my natural tendency to underplay my knowledge and experience (in quality that's about 95% on the job doing it training) caused that lower grade start. At least I got the job, joined late last year. So my opinion is get your experience through the job and doing it, with specific quality related training courses for targeted certification. I need those certificates myself to counter my natural tendency to undersell myself.
The one advantage my two engineering degrees give me is an ability to understand or appreciate technical and complex matters. My colleagues seem to be non technical backgrounds and they kind of play that up as being good not understanding the technical! They're mostly teachers, nurses, public sector HR or straight out of school into admin apprenticeship before progressing to quality through company development programmes. They're all doing well even if the more technical or engineering related tasks get given to those from an engineering background (degree or HND). I think the OPs work experience would put him in the technical camp if he was in my company, suspect he'd do well even without a degree.