As paraphrased by Yahtzee Croshaw, the protagonist is either weak but likable or unlikable but strong. A weak AND unlikable protag just makes it a difficult thing for the audience to engage with.
Character growth is a thing and the MC can become likable through learning mistakes and taking responsibilities. It is still hard for normal readers to engage with a protag that only grows in strength and not in behaviour.

Reactions: Navillus and Iamnotabot