The verse also has the opposite case: pure physical fighters, or characters who rely primarily on brute strength rather than magic. Galand is the most extreme example,
sitting at 26,000 Combat Class with exactly zero points in Magic at the time of his reveal. Every point of his combat power was physical.
On the other end of the spectrum, Meliodas after having his powers restored reached 32,500 total, with 27,700 in Strength and only 2,700 in Magic, making him a character who is overwhelmingly physical even while having some magical ability.
This cuts both ways against the UES argument. If the verse were a UES verse, Galand's complete absence of Magic points would be irrelevant, since his physical and magical output would scale to the same rating regardless. But that's clearly not how the verse treats him. His zero Magic score is a meaningful descriptor of how he actually fights. Similarly, Meliodas having nearly ten times more Strength than Magic points reflects a genuine difference in how his physical and magical output compare, not a cosmetic distinction. The Combat Class system consistently tracks these differences because they are real differences, and that is fundamentally incompatible with the premise that all forms of output converge at the same tier.
The fight between Meliodas and the pair of Gloxinia and Drole drives this point home further.
Gloxinia has a Combat Class of 50,000, with 47,000 of that being Magic and zero in Strength. Drole sits at 54,000, with 36,500 in Strength and 14,000 in Magic. Together they have a combined Combat Class that dwarfs Meliodas's 32,500, yet Meliodas stat stomps both of them with the Demon Mark, which makes his overral Combat Class 56,000. What makes this relevant is the breakdown:
Meliodas has 50,000 in Strength against Gloxinia's literal zero. Gloxinia's massive Magic stat did not compensate for his complete lack of physical power when faced with someone whose strength dwarfs his own. The numbers predicted the outcome, and the outcome confirmed what the numbers were saying. Magic and physical strength are not interchangeable in this verse, and this fight is a direct in-universe demonstration of that.