The bit that is missing is controllability IMC with HYD failure - most singles don't have DUAL HYD.
To meet the certification requirements for stability and/or level of reliability of the HYD and SAS is an issue. If you do not meet the requirements you have to demonstrate recovery to visual conditions for up to 30 mins HYD OFF and IMC.
That would be fun even on a good day - you would be busy!