Well I'm sure after the Constantinople fork Ethereum will find better feet in crypto space ,its will stand out among its competitors, ETH teams knows what they are doing and its good they postponed the upgrade in the first place for better results
I also feel that this was the right decision to postpone the update in order to correct all the errors. In fact, in other large projects, problems just happen and just as they require a quick reaction from the team. The Ethereum team is not fast but is developing the project, so I think that there will be no security problems.