1) sure it is. You have to think about it to get it, though.
2) sure it is. I don't have much more, but I've seen it happen (in both my favor and in favor of an opponent) much more than that.
There's not much you can do except for you to quit being so certain that you're absolutely 100% correct in every scenario you decide to stick your nose in. I've had the better team and lost playoff series. I've also had the worse team and won them. Both times when there was no logical reason behind it. The only thing that could be pointed to were statistical outliers (ie randomness). And it's happened often enough that many, many owners here have shared my feelings and have said it time and time again, to which you always feel the need to say differently.
Just curious, how do you define 'usually'? Half the time? 75% of the time? 90% of the time? I'd say the sim favors the better team about 57.1% of the time in a seven-game series. To me, that's not usually.