Why Project 72's carrier concept is so constrained

What was wrong with Soviet Project 72 as an aircraft-carrier concept?

It inherited Graf Zeppelin's rigid design logic, including rail-based aircraft handling that locked in future operating and hangar constraints.

Project 72 is an attempt at a carrier solution rather than a convincing one, particularly for Baltic, Pacific, or northern operations. The inherited Graf Zeppelin approach is the central problem: fixed aircraft-handling arrangements constrain future aircraft size, hangar layout, deployment, and the handling of damaged aircraft before the ship is even built.