There are two structural reasons for why we never saw Altseason this cycle and why we might never will:
1) Exchange listed much more altcoins than previous cycles. Supply of altcoin assets way outstrip demand. Binance alone listed 15 Day1 projects in Sep, largest in history.
2) Binance also list much more perp for altcoins than any cycle before, making perp the predominant way for retails to speculate instead of holding spot.
This makes spot liquidity not only slim, but also extremely fragile, as it's mostly driven by second-order derivative of perpetual demand, namely MM hedging and basis arbitrage.
That also means when we get an event like 10.12, the liquidation cascade on perps forces sell pressure onto already-thin spot books. We effectively get into a reflexive liquidity vacuum that amplifies downward price action.
Now, after MMs bled on altcoins, they’re likely to pull back from altcoin liquidity due to internal de-risking and tighter internal risk engines. The market needs to inhale some oxygen before we can expect another altseason, if one is to come at all.