Spellchecker? You are going to call me out on my spelling? Really?
The more threatening the villains the higher the stakes the more tension and conflict is created. The bigger the challenge to the main characters the more their personalities are d explored and their skills shown.
These particular villains may only last a season or two. Fundamentally the show will be based on original Trek of seeking out of new civilizations and boldly going where no one has gone before. Basing the series in the 29th century would be an opportunity to introduce original new species.