Some views of money managers are not applicable to retail. They act as per their situation. They may continue holding something even if there is exuberance, because exuberance can continue.
Of course, as exuberance dissipates, price will fall, mean reversion can happen sooner.
Had a position in the stock, held for 3 years, saw it post its ATH, saw it come down by 40%, sold a month ago for good profit, bought again, have a small position now.