People get in a tizzy almost any time refs call a significant amount of fouls. The reality is that the number of fouls called per game hit an all-time low in the 12-13 season, at 17.68 per team per game. Much like FT shooting %, there actually hasn't been much variation at all in terms of fouls called- the average since they started tracking in 1948 has ranged between 17.68 and 22.5. The last 20+ years has seen a general decrease, from 20 in 91-92, down to that record low in 12-13. There was a fairly large uptick in 13-14 (early season stuff), but last year, the number was back down to 18.2.
In a sense, it's nice to have some consistency in how many fouls you expect the refs to call, but the reality has been that coaches have used referee apprehension about calling more fouls than normal to gradually increase the physicality of play, especially on defense. Which has had the effect of making the game much slower paced, and much lower scoring. It's stunning just how many fewer shots teams actually take now than they did for a huge chunk of the era that predated the shot-clock.
The only way to change that is to go through a period when more fouls than normal are called, because that's the only way you're going to change standards and get it to actually stick. The key, as many others in this thread have noted, is consistency. If you have different standards in March than you had in November, any attempt at change is doomed to fail.