Lol, Lin Feng is already strong and their uncle really cocky about Lin Feng inferiority against him.
In martial arts, ranks/tiers dont held everything because someone who has lower tier but expert on variation skills can beat much higher tiers who just mastering certain skills but lacks of variation on it.
lets wait another full chapter to prove who is weak one and strong one.
As for MC waifu (Meng Qing), she really care about him and call him stupid due his reckless action endangering himself, how nice to had her.