the mechanical skill ceiling alone is irrelevant in a game whose philosophy from the very start of development was to encourage, or even almost force, teamplay .
Either way, how much higher is the skill ceiling in CS? Headboxes are slightly smaller, players move slightly faster, and the guns are deterministic. Is that really so much more than Valorant's mechanics to the point where the difference between the two's ceilings is so far apart? I'd rate it at 50% higher max. That's not enough to convince me that a s1mple of Valorant is "impossible".
(not to mention the fact that the angle diversity in Valorant is much greater due to movement abilities, and the fact that ability usage in itself is an extra mechanic)