It's long since time to nail this rubbish about Meredith's supposed karate training somehow proving that Guede couldn't have been a lone assailant. A 57kg medium-height woman against a probably 85kg above-average-height athletic male is a mismatch in any context. But when you add in the fact that the male in this scenario was brandishing a large knife, the mismatch is even larger.
And the other fundamental thing to remember is that we have the benefit (not that that's really the most appropriate word) of knowing that the confrontation ended with Meredith's death. But in a real-time situation, it's highly likely that Meredith didn't believe that Guede was going to harm her. This belief, coupled with raw fear, would naturally lead anyone in such a situation to be compliant, since it would be wholly logical for a victim to reason that compliance and theft (or even perhaps some form of sexual assault) would be preferable to resistance and murder.
There are countless examples of where single assailants have managed to control even groups of people by using this psychological methodology. For example, Dennis Rader, the so-called BTK Killer, persuaded households of up to five people to tie themselves up using nothing more than a knife and the threat of violence. Once everyone was tied up, he was then free to carry out his real intention of torture and murder. But if he had announced his intention to torture and murder from the very outset, he would obviously have been met with resistance, and would very possibly even have been overpowered. The sad truth is that none of Rader's victims really suspected his true intentions, so they were initially compliant instead of fighting for their lives.
In the same way, I strongly suspect that Guede probably indicated to Meredith that he wanted her to keep quiet and not try to escape, and used the knife as a threat. Perhaps Meredith thought that Guede intended to find her keys (so that he could exit via the front door), and perhaps also steal money and portable valuables from the cottage. If that is indeed what she thought the limit of Guede's intentions were, then it's entirely logical that she would have been passive and compliant. I think that when it becaome clear to Meredith that Guede also had the intention of sexually assaulting or raping her, she switched from compliance to resistance. I think that this sadly cost her her life.
Oh and by the way, disregard padron's argument totally. It has no basis in logic, and is unsupported by the known facts. And he has no comprehension of the implications of Guede's Supreme Court judgement either.