Coral,
RE. utube, that looks (in practice) like the northern VFR lane v. the 16R ILS at YSSY to me.
So what's the problem, if you think 500' is OK, after all, it's "ICAO" and all that sort of stuff. If you want to see real "close up and personal" have a look at Orange County/John Wayne International simops (just one of many US examples - and believe it or not --- it's in the NAS 2B paperwork -- We statistically have more mid-airs than US) some time.
Tootle pip!!