They could cut costs how? Cheaper leaf? Fewer employees? Compromise quality? Pay employees less? Take no profit?
I would bet that costs are reduced as much as possible and that prices were reluctantly raised as the last viable option. These blending companies are not huge operations with a lot of options. Those that are wholly owned subsidiaries of other companies must show a profit or die, be sold, merged with other names and the marque lost.
Everyone of these companies has people that must be paid, rents to pay, utilities to buy, licenses to buy, regulations to comply with, materials to purchase, repairs to be made, politicians to lobby, insurance paid, advertising must be developed, produced and then space engaged, etc. All of these costs must be passed on to the end user and a profit made. Smart companies plow most profits into growth, research, etc. But, without profit companies shutter and die.
Not one of the companies blending tobacco is doing so for altruistic reasons. We, the smokers, risk a little money while the manufacturers risk everything.