Seasoning and profitability rules are why S&P does not have as steep of a drawdown or as long as a recovery as Nasdaq over the last 30 years of market performance.
The S&P recovered from Dotcom bottom in ~7 years while the Nasdaq-100 took 15 years. Likewise Nasdaq took 3.5 years and the AI hype to recover back to its COVID highs in 2024 while S&P had the same recovery in about 2 years.
This is the downside to Nasdaq having higher returns in tech bull markets.
So the indices have a very different volatility profile by design, we should be happy to have the choice rather than have them all converge to the same product.