Note the third paragraph in the cover letter for the attached Helicopter Safety Advisory Conference (HSAC) 2021 Safety Review (dated 2/10/2022), particularly this sentence:
There is a trend of doing more with less, for example decreases in the numbers of helicopters across the board, yet increases year-over-year in passengers carried, hours flown, and number of flights conducted.
The 2022 data will not be pretty. Clearly there are issues to be addressed.
Bud's Offshore Energy (BOE) 
When I compare with helicopter use in the North Sea and similar waters, the most obvious difference is that only twin engine helicopters are used in the North Sea, according to offshore operators’ contract requirements.
From HSAC’s statistics, no fatal accident resulted with twin engine helicopters in GoM the last 15 years, all fatal accidents are with single engine helicopters. The natural action to take is obvious!
Thank you Jan-Erik. For the most part, single engine helicopters only serve nearshore, shelf platforms. Of course, there are still more than 1600 of these shelf platforms, 1100 of which have helidecks. About half of the shelf platforms with helidecks are more than 40 years old (dating back to 1948). The two most recent incidents appear to be helideck related. There are a number of HSAC standards related to helidecks, so the adequacy of these standards (and industry’s compliance) needs to be further considered. Also, the pilot was incapacitated in at least one of the 2022 incidents. I have always strongly favored both twin turbines and twin pilots!