Yes it is. What is lacking is the fans' ability to understand sometimes our players foul, and sometimes, often in fact, when our players go down it isn't a foul, and some fans, probably a lot, simply don't know the current laws so are at times simply unaware the ref is right.
We do seem to have had a selection of poor referee's recently, but as said by others it all evens itself out.
Perhaps the quality does need to be improved but in a weird way i can forgive a referee making an honest mistake in a game.. its when they completely bottle decisions, and dont enforce the rules which annoys me most. Delap should have been sent off tonight, but the ref bottled it. Fact.