Was it? Aside from Sobers and Barrington nobody with a decent amount of tests was averaging 50 then. You had Trueman, Gibbs, Benaud, Statham, Hall, Davidson, Snow, Underwood, Lock, Laker, Fazal and Pollock all playing throughout his career, quite a few formidable names there.
Yeah but if they died they probably weren’t good enough to be quality test cricketers anyway, and despite the number differential Australia has always produced more quality cricketers than England despite the population deficit.