It should be noted that these aren't supposed to be a rerelease of the Kenner line, it's just figures inspired by it. These are adult collectibles and not at all a toy like the old Kenner figures, not meant to be played with.
As for the color choices, they often do these vibrant and fun colors first, and then eventually drop a more normal color scheme. Sofubi figures are often vibrant and bright with their colors, not based off of the actual design of the character the figure is based on. Pink cherry blossom colors is a very popular style in the soft vinyl collectors world. If you want the actual Kenner style figures, definitely just find those and you'll get them for much cheaper! You can still find them in package for decent prices too.
And as someone who collects these soft vinyl figures, I do agree there is a price tag sticker shock with these kind of items and I also wish they were cheaper. But the nature of soft vinyl figures make them more pricey. It's one of those situations where I don't love the facts, but I kind of just accept them. Though, once I have a figure I spent that much money on, and see it in hand with the amazing quality, I do feel like I got something good for the price I paid.
