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I would believe that, if I had the skills and was asked to design an engine I would design it LOP as well, doesn't mean when it got built there might be some limitations not intended that are either inherit in the design and/or manufacture that now must be observed.
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That's a weird approach. If you thin that might be true, and intellectually honest, you should say why that *might* be the case. It's not the case. The only issue was that they did not provide the product with balanced F:A ratios like the design called for. Had they, we would have been running these engines for 50 years like they were intended to be run--LOP. GAMI fixed that and a small group of pilots don't seem to be able to "get it."
Be well. Go on as you see fit.