Some players are just crap, some are good one game, crap the next, or even within the space of one game. Some fans also have no objectivity when it comes to (certain) players. With how inconsistent the whole team has been, and my inability to remember anything after about a week, I think it's difficult to say conclusively whether some players are any better or worse overall than they were before. To really see you'd have to go back and objectively judge performances with/without.
As for blaming the crowd etc, we like to call ourselves fans, or as I prefer, supporters. You don't need support when things are going well, you need it when things are going badly. Not that they should be exempt from criticism, especially if the effort is not there, but the overall feel should be one of encouragement and positivity, not the opposite.