I'm not familiar with the "Hornet". You don't mean the "Killer Bee", do you?
"as drawn" Included two views. Side and top. It's tough to tell anything significant about a design from two views.
As envisioned, the frigates, heavy frigates and carriers were supposed to represent a side of Starfleet never seen-- a "Starship Troopers" side and "Star Wars" side played out within the rules of a TMP universe. Starfleet mechs, orbital insertion troops, landing craft, scatter beaming, fightercraft and drones, etc organized in layered task forces where the frigates defended the carrier ops. Ariel has a radically expanded secondary hull to accommodate radically expanded operations that would include colonization and evacuation as well as invasion.
It is what it is. Not everyone's cup of tea. Which is as it should be.