Yes, hence why I have no problem with that being used to refer to percentages of a character. My point though is that these measurements are still far different from standard energy values that would make it apparent some small battle power gaps are actually gigantic by irl standards and vice versa. It's not as though the series completely ignores this either, considering Piccolo's statement about 100 Roshis, Tenshinhans or Kamis still being no match to his fatigued state despite us later learning Tenshinhan and Kami would have over half his full power self's Ki at the time. That said, even if the difference in tiers between SS3 and SSG was greater than that between Base and SS3 (just like how the difference between Tenshinhan, etc. and Piccolo at the 23rd TB is treat as far greater than that between BoZ Piccolo and Raditz), that's not to say this should automatically be the case for the difference in battle power.