I’m not sure what you mean by a ‘real worlds competition’ but Westside has more elite lifters than any gym I’m aware of. I’m not a Westside spokesperson, but there is absolutely no question Westside, and Lou specifically, has had a huge impact on the sport of powerlifting, and strength training in general.
And, none of the lifters mentioned above trained at <80% of 1RM to the exclusion of higher load lifts…they all lifted heavy on a regular basis.
I’m still waiting to read about a club, team, or group that has produced elite lifters in powerlifting or olympic lifting that does not include at least 10-15% of all lifts in the >85% of 1RM range.