I like scenarios and challenge they offer, so I was looking forward for new scenarios in 1.3 patch. But as I played through both of them on hard I realized fatal flaw of timed scenario in games like planet zoo and why they just suck and are frustrating. In the end I was able to finish dlcs one after several attempts and patch one on first try, by selling staff facilities to get rid of loans. I will most likely not play them again as the experience was nothing I would want to experience again.
My suggestion for future timed scenarios to make them more challenging without imposing real time restrictions:
My other wishes:

- Time limits forces you to use default prefabs and place it fast, there's no time to use one of main pillars of planet zoo - building from pieces
- only way to use it is to create blueprints and paste them, but they have to be cost effective.
- There's no choice, game has to run continuously or you will have hard time to achieve objectives such as yearly income or five start animal (unless you luckily buy one)
- how I hate yearly income, due to fact that whole game year has to pass, which is pain when time is limiting you and your pc
- Due to game running continuously:
- it's optimal to take loans to make it in time constraints, cheapening the challenge;
- creating habitats with multiple animals (herbivore dominance) is preferable to reduce time spent on;
- it's not for average player, it requires better players with higher APM and good knowledge of mechanics;
- let's name it so you get idea what you have to do if you don't use blueprints, and even if you use you save only time spent on creating habitats:
- create plan, most likely fist launching scenario several times to get complete list of animals in it and then mixing available animals to habitats to fulfil objectives
- create habitat / place exhibit
- buy animals, move animals
- complete habitat
- hire staffs
- place staff buildings
- set up workzones
- upgrade staffs
- place donation items
- place education items and set them up
- place shops, atms, benches and bins
- deal with annoying path creation and uneven terrain
- solve issues with animal welfare to keep it above XX%, like placing more enrichments items, getting rid of unexpected overcrowding
- manage other: ticket price, shop prices...
- do other absurdities that will just be somewhere in corner, completely ignored like rides
- all this under time limit, with unresponsive UI and lags due to large amount of guests frying your CPU
- let's name it so you get idea what you have to do if you don't use blueprints, and even if you use you save only time spent on creating habitats:
- better hardware == more ingame years will pass == easier challenge
- just don't do it on potato PC's, 5 year old gaming laptop made it clear to me that it's pain to do it with 5 fps, when I was forced to edit area where guests accumulated.
- Time limits are lazy design, we can do better!
My suggestion for future timed scenarios to make them more challenging without imposing real time restrictions:
- Loans should disable getting gold reward.
- Finally there will be real challenge and not just abusement of taking loans to ramp up everything as fast as possible.
- Real-World Time Limit replaced with number of ingame years that can pass to achieve gold, silver, bronze reward.
- This will make it more about strategy and smart planning, which is definitely more entertaining challenge then speed clicking.
- Carnivores being required would improve challenge as they are much harder to keep.
- Easily achievable research objective should be present to make use of research game mechanic.
My other wishes:
- Can we please have larger drop down lists in filter? - scrolling everywhere is awful
- Can we please have list of all available animals in scenario somewhere in game listed, so we don't have to refresh and hunt animals appearances in trading?