In my eyes the big problem with living outside of caves are titans, tek tapes, ddos causing tapes not to get shot, storage issues (clean females for matation breeding), meks. The problem about the titans is that their attacks make it nearly impossible to counterpush or deffend the choke at desert plat for example while beeing frozen and getting grabbed out of render by groot. Tek tapes are abled to swarm your tower with 40k hp and 30 of them + racers with 140k hp and even more. Since flashes way more than a dedicated of metal now its nearly impossible to effectively flash the riders and the lagg causes tek turrets to not even target the rider. Meks cause unprotected spam to basically be useless and allow to push with mobile forcefields that have a bigger influence on a giga fight than a yuti with their shield debuff. Especially since as a defender you will most likely be heavily outnumbered a wide open area for the enemy to attack from is deadly with the. current state of raiding. + owls and manas killed ground pvp.
Dino stats: with the muta breeding dinos go up in stats insanely high, but you cant muta breed your char or base. Thats why theris are faster than a player and 1-hit you, racers with 140k and turtles with 100+ k can soak inproportional amounts of ammo and countering them with them having titan support is quite a challenge if not slightly impossible. For example: on aberration where there are no flyers the big manta boy is downloadable but there is no way of dismounting him.