I absolutely agree with this, and in fact I think its really a missed chance that they did not do this. Because this could also be built into the skill check system, and this game REALLY missed the mark when it came to making all the skill checks valuable. For example when fighting an animal, you could start out with no information, but a nature skill check might reveal things like its AC, resistances, vulnerabilities, etc. And you could use different skill checks for different creatures.
Definitely a missed opportunity but I don't think it's too late, at least to do the bare minimum and offer a mode that removes that info (literally just turning pieces of code off). Even folk that have already played in Tactician mode might be keen to give things another run in this fashion. And I think many folk may not even be through the main campaign yet (especially Mac users lol). Integrating with skill checks would be icing on the cake – 100% agree with that. We rarely get to use those skills right now.