The title says 'senior' so one would think Google Senior (L5), Amazon Senior SDE3, Microsoft 64 etc, but the sub-title indicates it is for 'all levels of senior

The title says 'senior' so one would think Google Senior (L5), Amazon Senior SDE3, Microsoft 64 etc, but the sub-title indicates it is for 'all levels of seniority'. Well duh, ok, I would expect a Google Principal (L8) or Microsoft Partner (69) to be able to perform most of this list. The list for the exact Senior would look more like this: 1,2,3,4,5,11,15,16,21 -- L5+ senior engineer 6,8,12,13,14,19 -- manager (M1+) or L6+ engineer. 7,9,10,17,18,20,22,23 -- common "skills" that everyone executes up to their ability, but in general you would expect a corellation between the eng level and the ability in these.