Here is some context to understand how good Ritz was in HS. Ritz beat / stomped Alan Webb and Ryan Hall at FootLocker in HS. All 3 went on to set American records. Later that HS year Webb beat Ryun's legendary 35 year old record in the mile and was the first sub 4 HSer in 33 years and it was the best mile by ANY American that year.. Even with super shoes, nobody has beaten that. No other HSer was even close to Ritz in the 5k or CC even with Hall & Webb in the same class. As a Freshman in NCAA CC, Webb was 11th.
The shoes have more effect the longer the distance. Realistically, Ritz was the better HS runner than the Youngs by quite a bit. Direct time comparison is not reasonable.
The Youngs will do well, but expecting them to be Webb or Ritz is probably not fair.