Do you even understand how computation work on a basic level? Forget ternary, forget IoT, forget hashfunctions. Do you understand on a basic level how operations are carried out? IOTA's PoW is negligible as a spam-preventer. There is no economic race to the bottom in the shape of hunting crypto nonces for mining rewards... What are you going to do? Spend 10 000 000 to attempt to disrupt a 0.1 cent transaction?

Do you know how many logic gates are necessary for a component that acts like an ASIC for the IOTA Curl hashfunction? Do you know that there is already more than enough room for this on the die, hence no extra expenses?