It still does happen for Public School kids but there is no doubt it is a harder road. Prep kids are more prepared for college is ever aspect and the coaches know that going into it and if it came down to a public or prep kid they will take the prep kid . Go to any founders league game in May it is loaded with ever Div 1 coach you do not see that anymore with the Public schools
The Nassau and Suffolk public school regional team tryouts had every D1 Coach (some multiple) and all the D3 coaches that the kids would want to go to. All coaches went to the tournament also.