I think the fishing at its current state is just kind of free food. Sticks, vines, and a knife is all you need to be set for food. With that said, you're spending a lot of precious time sitting around twiddling your thumbs. Time you could be spending looking for copper, building shelter, etc etc. Also I think it sort of fills the early game food deficit you have from the big berry nerfs. I think the fishing as it is could be dialed back just a bit, also there should be something to the fishing. Any sort of substance, so long as it's not incredibly tedious. Some sort of rod interaction where the puny fish are easy to yoink, but the bigger fish require some fight. I think being able to get an adult sturgeon with the same amount of effort it took me to get a juvenile walleye(none) is a little silly. Having varying effort required for the different fish would probably feel more rewarding. Also having a later game option for fishing would be cool. Nets, trot lines, traps, better rods, any of them really. Also I think the taxidermy fish are really really cool, I'm excited to set up a fishing hut with a wall of them sometime soon.
TL;DR :
I think the berry bushes received all of the tedium that the fishing probably should have had. Fishing could stand to require a little more effort, but I'm still enjoying it as it is right now.