You have take into account the GSAs each team were replacing:-
Edinburgh : Sedgmen( 8.32) with Dan Thompson(7.28), Thomson( 6.86) with Joe Thompson(5.78)
Glasgow : Flint(6.82) with Barker(6.32), Garrad(2.00) with Perry(2.00)
Statistically, Edinburgh appear to have lost more potential points than Glasgow, but both sides were both restricted in their guest choices because of availability, & also the 7 day rule, in the case of Edinburgh.
Only other options imo for Edinburgh would have been Kerr & Vuolas for the Thompson twins & also Vuolas for Barker for Glasgow.