I just read his twitter where he talks about it and I quoted him in the WO thread, but anyway, we should not forget that it is normal to see these theories in a bull market.
In a bear market these theories are either not said or go unnoticed. Having said that, I hope he is right.
If I have understood you well, you are saying that these parabolic moves up won't happen because institutional investors will help stabilize the market. So you are not so bullish as him
Parabolic runs still happen but the "crash" is limited on the downside as other people buy the dip and the run keeps going.
Look at the nasdaq, it has been in a bullrun for 10 years. So btc could start looking more like a bull run in traditional markets and less like a dot com bubble such as in 2017.