That you think the Jedi are inept in this story means you have missed it as well. The Jedi aren’t incompetent, the Sith were behind what happened at Brendok. There are several clues that Qimir is at Brendok at the same time as the Jedi, interfering and making the Jedi seem incompetent.

There is what is set up the 1st episode. The Jedi live in a dream, the Alcolyte must kill the dream. The dream isn’t just the force, it’s their perception of their skills and how they use the force and think they are right. It isn’t just about killing a Jedi with the force, it’s also about shattering their arrogance and reputation.

Assuming that Qimir was masking his presence in the force outside the Jedi Temple and not doing anything that would reveal him as a force dark side user, when Qimir 1st encounters Sol in the 5th episode he recognizes Sol’s presence in the force. Since he can’t see out of his helmet, he has recognize Sol’s force aura which means he had to have met him before, in a setting where he could feel Sol in the force without being specifically identified, like near a Coven full of Dark side Witches.

In the last episode Osha tells Qimir that the only way into the castle is through the elevator, yet Qimir disappears a moment later, and shows up inside near Sol, before Osha even makes it inside.

When Qimir goes to erase Mae’s mind, he is only erasing traces of Osha and himself. That the last thing that Mae remembers is her mother’s death, means to remember more would incriminate him. He was there, he set the bomb that exploded and force pushed Mae into that tunnel.

Finally, it shouldn’t be to difficult to imagine Qimir, making Sol feel danger in the force and misinterpreting the Mother’s intentions as hostile, at just the right time. If you go back and watch Indara doesn’t actually kill the Witches by breaking the link in the Wookie’s mind, it’s actually the other way around. The Witches die 1st and then the link is broken. If Indara, is trying to pull Koril out of the Wookie she would of had to change her focus to kill the Witches and that is not what we see.

So the biggest problem is that 90% of fans completely miss all this, so they think the show is 30% when it’s closer to 60%.