Ludia did a good job moving special event supply drops out of parks. They should go one step ahead and get rid of park specific Dinos and distribute them to four locals equally.
Sometime ago, one of the top players @Marktheshark mentioned his struggle with farming DNA for Dinos locked in park. Now with 1.6, even more very very important Dinos have been moved to parks.
Parks have very low number of spawn points, which are not enough. For reference, it takes on an average about 1500 EPIC DNA to create a unique Dino ( after Legendary Dino is at level 20 ). Currently parks have 2 EPICs who make 2 Uniques each, and have other rare and common dinos which make uniques / super hybrids.
One might argue that running EPIC scents can elevate issue, but cost of an EPIC scent is around $10 in real world money, and on an average one can get 2.3 EPICs per scent. Odds of getting EPIC a player is targeting is even less for those 2.3 EPICs.
In my view, Park are leading to inferior game play experience and are not healthy to game. Even if Ludia is to double spawn points in parks from current levels, issue would barely improve. Therefore, Park specific Dinos should be removed completely and merged to locals.