I think it is a reasonable idea to sell Dime’s for DNA but I think how good of an idea it is depends on your end goals, what your current lineup is and how you play the PvE, PvP and tournaments.
sHybrids are super strong right out of the hatcher from lvl 1-10 which makes them really really useful and valuable for players under the 7k ferocity range (give or take). But all sHybrids have diminishing return type stats compared to other dino’s as you go up fusion levels. This makes them not quite as useful for players in muich higher ferocity levels. (excluding Indoraptor)
A lvl 10 Spinotasuchus starts with a ferocity just between a lvl 10 Yudon and lvl Scorpios rex. But at lvl 40 only has 12770 ferocity, where both Yudon and Scorpios surpass that somewhere between lvl 21 and 29.
So in the long run an army of them is not going to be super useful and since the game is so carno heavy you can afford the trim the fat in some area’s and if that area is DIme then that is not a terrible idea.
I made the correlation the other day that 1 dime hatched = 1 Ostapo in the bank which is currently the 2nd strongest amphib in the game.