I wouldnt like these holidays if they didnt have a point. See, since the K govern, they made huge changes in the calendar and now we have a lot of more holidays per year. Holidays that didnt exist!!
The main reason they give to the critics is simple: internal tourism. Exactly, if you have an expansive economy, printing pesos, with a very important percentage of informal job and cuentapropismo (pequeños comerciantes), the fact of having these holidays 5/6 times (or even more) a year, really helps and dinamizes the economy. Tourism is one of the 5 important sources of this country, so that explains a little.
If some of you lived here before the Ks, probably should notice these big changes they made, easily 10 new holidays per year!! Bad for the kids that must go to school, though.