Again we come back to your topic: just fish and you get it.
Sure i may jsut go every window possible in hopes of hiting that juicy 0.5% lucky 7 all staars alighn moment. That is not how i and many others go. And my pesonal examples shows how unlucky these windows may be. i spent more than 30 hours combined geting phallaina. If i didnt jail myself it would mean 30+ windows of a whale which are 1-6 days apart from each other. That is a no-no.
Despite 29+ days being an exception rather than a rule we still remember it. And some of these fishies still have 4-7 average downtime (hello salad). It is not fun to wait for a real week hoping you hit that 1% chance. That is if its not 3 AM your time. I dont ask to make this fish easier. Make the windows more common. I know Duskfish holds the record of downtime. And we dont care because its an easy catch. Waiting for months just to try and get one only to meet a real BS like an egg or lancet is not FUN.
Some people spend 90% of their playtime on fishing only. Sure. have *fun* with it. But some of us have other stuff to do. I want to have it done eventually. I dont want to spend half a year fishing (pun intended) for 1% chance. Especially knowing my luck. I want to have more chances to go for it. I dont want to cancell all my IG and IRL activities to go for a fish, knowing that if i will ignore it i will have to wait for 5 days and it will be mid of the night for me. so 5 more days after that.
You may compare it to pve endgame but you can do that one whenever you want. As for fishing - game decides when i can try it. If i cant participate - too bad! Better luck next week.
As for jailing, fishing is pure RNG. All we can do is manipulate that RNG to a bit. Use tricks. come 20 min earlier and prefish. Hold HQ mooch till the window starts, slap the right one, use collectable trick etc. Jailing is one of those tricks as well. come earlier to catch the required fish so you can get on to it as soon as possible. As for your logic we dont have to get fisher intuition stacks. We dont have to surface slap. we dont have to count / macro countdowns. Just come in, cast a line and hope. No. Thats is not the way to go.
If you want to have super rare fish - let me try it for a resonable time period. I will be OK with something like an egg if i can try it once a day. I will be fine with a whale if i can try it once a week guaranteed.
You saying "you dont have to jail" is like saying you can choose not to fish at all.