While I do not have any industry experience in design review meetings, I think it is crucial to finish the previous step before moving on to the next. Even if you are on a strict timeline, it is irrational to move onto the next step if you aren’t fully prepared for it. For example, if the planning process is rushed, the team can grossly overestimate or underestimate some important spec/parameters. The product can be developed using the wrong blueprint, and then tested under incorrect settings. All this time will be wasted when the team realizes the errors and is forced to go back to the first step and restart the whole process. This delay will be even greater than if the team spent adequate additional time to complete the first step. It also depends on how far along the team is in the design control process, and how much the incomplete step will impact future steps.