I don't think you are even reading what I am writing, or if you are you just change it to be what you want to fit your argument.
I never mentioned success or not, that is a much trickier thing to determine because of a number of factors. If I had to say yes or no, I would lean yes because he has come in and been a key part to the team. That doesn't mean he gets a complete pass or that I don't think that he couldn't offer more, but overall there has been a lot more good than bad with him during his time with the club.
I would love to see the excuses that I have made. I doubt you will provide them because that would involve having an honest discussion about him and you have repeatedly shown you have no interest in that, you just want to ignore reality and run Ndombele down.
I agree that a lack of desire could see him not live up to his fee, still way too early to say if that has happened. I don't think it will mean he is a failure though as he has clearly not been anything close to a failure at all.