I didn't mention whether I thought the increase in IPOs was worrying. (In fact, I do think we may be reaching/reached saturation.) IPOs per year is a highly volatile number [1], based upon lots of factors, such as perceived market conditions (sometimes by the underwriters, not the company IPO'ing). [2]
[1] https://www.statista.com/statistics/270290/number-of-ipos-in...