It should be noted that this being the third time around for Woodstock (the first was in 1969, followed by a 25th anniversary festival in 1994), a lot of the bugs should have been worked out; while several were, many more flaws became apparent. However, don't assume that this was a completely flawed affair — far from it. There were a lot of people (approximately 225,000) there looking to have the fun they came and paid $150 for, and these people made do with all of the reported hardships (long lines for all necessities, EXPENSIVE food and drink, LOADS of garbage, poor sanitary conditions).
The end result of what was supposed to be a good time was inevitable in light of these downsides — and four days of relentless sun, heat, drinking and drugs, no less. If the shameless, blatant capitalism of this festival wasn't so obtrusive, perhaps the degree of rebellion and riot would have been lessened. One can only speculate after the fact.