No, I already covered this pages ago. When people refer to Zeno’s power and his relevance to others, it’s specifically the fact he’s an unkillable god being that can erase ANYTHING—No exceptions.
He is the MOST POWERFUL BEING IN EXISTENCE. This is reiterated several times.
HOWEVER, as stated by Beerus and Whis, he is not a FIGHTER. He is not fast or strong in the conventional sense, nor is it EVER implied he uses Ki. We see this quite clearly in the ToP, where he was a non-combatant who couldn’t observe the fights, and relied on a keyed up IPad. He cannot hit hard, fire lasers, or move quickly, but he is still the most powerful.
That quite literally means that when Whis said his father was the “most powerful” he meant as a conventional fighter.
This is further established when they talk about Ultra Instinct—Goku’s at the bottom of the latter, Whis is higher, and his father above him. Simply put—The Grand Priest is the best fighter/warrior. The Omni King is the most powerful creature.