No, I am not blaming LP alone. I said that clearly above. I just care for him more, in some sense, and wanted HIM to be there in the Olympics team, while I could live with either MB or RB with him (prefer MB still).
LP is the key for us winning the medal. In my mind, he is the only player we have who is unparallelled in how well he does what he does best - which I can't say for MB or RB, even if they are top-5 type doubles players. That's why I care for LP more when it comes to Olympics, because you do need such potential for superlative effort/abilities to pull off Olympics medals.
LP has not disagreed (as far as I know) with MB that it was he himself who wanted change things after one year together. MB did not say he wanted to play with anybody else this year, and he said it was LP who said he wanted to play only few events with MB to be fresh before Olympics etc. LP didn't disagree, afaik. Of course LP had to have known (well, any of us could have foreseen it) that RB would not play with LP if MB was left out. Then what was Lee trying to do? Thinking too much and messing things up, and that's what I feel.
Whatever MB did or did not that brought Lee to want to do this, is something not really out in the open - but I assume MB is to be blamed for whatever that is. Have assumed so all along. So, as in the first split, second split, and the Nth split now, I blame them BOTH. But Lee is the one who is out in the lurch now, for an Olympics partner. He should have known that this would happen and done whatever was needed. MB had alternatives, and LP did NOT. So he was the one to bite his lips and take it. For not doing that, is what I blame LP. Now look at the mess. But I suspect this is what he wanted - as he may be super-confident that he will have one of these two guys with him for a few events before Olympics anyway, either because they crash and burn or because AITA will force it.
If I felt MB was making life hell for himself, I would blame HIM too. But he is in decent shape, unless MB-RB looks like a terrible team, which is doubtful. They would anyway be one of our two teams it seems, so he has not lost much except perhaps a better chance for a medal. So, I am not that frustrated that he is in some sort of plight, to go after him for taking it that far. But I feel LP is in a bad place now, even if he doesn't realize it because he is cocky confident.
Now, if LP's plan was that he only wants 3-4 events with MB or RB before Olympics (for the sake of avoiding being jaded) and that AITA will after all force the issue after MB-RB fail like he expects or something, then it is rather cynical. He shouldn't be thinking like that either. For two reasons, one - it is wrong to do. Two - the idea of playing just 3-4 events has not worked for multiple Olympics. That's all what I lump together and call as "bad karma" which Lee probably disregards in favor of possibly some tennis judgment in his mind, or ego or politics.
In any case, there doesn't seem to be much doubt that he could have stopped this if he wanted though it would have taken him (in his view) swallowing a bitter pill for a few months. That is why I blame him. I am not so sure MB could have stopped it from getting here, but that doesn't mean I do not blame him or anything either.