I think that the price increases might have something to do with the dollar-peso rate, Me and the wife are from Mexico and live here, for as long as I can remember the dollar-peso rate was always going up, making the trip to desire at least 20% more expensive every year ((price increase + currency rate increase) but for the last couple of years it’s been the opposite, the rate is at least 15% lower, so with the the price increases, we are paying pretty much the same as two years ago. I guess since Desire and all the hotels for that matter are located in Mexico and all their bills are in pesos they needed to adjust for that loss in the exchange rate, I know there must be other variables in there but the exchange rate might be a big hit for their revenue.
I don't thik so. Cancún and Riviera Maya's economy is completely "dolarized" since I remember. When dollar exchange rate was around 23 pesos, none hotel descent their rates. There is no logic for increasing them when dollar is cheap ($17.09 pesos today). Most of bills of a resort are calculated in dollars. Salary of employees are certainly in pesos, but just for lower levels. Executives earn in dollars, too. Hotels took advantage of the post-pandemic increase in tourism, but it is already reaching normal levels.
Just my opinion, from point of view of a Mexican who makes business with hotels in that area and in Cabos.