ForeFlight has done this for a LONG time. Before Performance existed, the Pro package got a lot of new features first, because they cost a lot of money to develop and ForeFlight wanted to give the reward to those who were financially supporting them at a higher level. Many, if not most, of those features eventually trickled down to the basic version.
The Performance version definitely got its start aimed squarely at those who are operating turbine or turbo equipment, as choosing the correct altitude to get the optimum speed and/or fuel burn can make hundreds of dollars worth of difference for those people in a single flight. That doesn't mean that the old performance engine still in use for Basic or Pro is any worse, it just doesn't make a big enough difference to matter when you're going to end up in a relatively narrow range of altitudes anyway.
Now, of course, every business exists to make money, and so I see ForeFlight appearing to try to sell the Performance version to everyone, but they're doing the same thing they've always done: Add the biggest/coolest new features for those who cough up more money first. They *ARE* adding new features to *ALL* the versions with every release... But of course, they're hyping up the new features of the Performance version the most, because they would like you to give them more money. Again: It's a business.
What I think is kind of silly is that everyone is still getting new features, but because they don't get ALL the new features, they get mad. Did your version get worse? No. It got better, just like it always has. Do you want/need some of the new features now? Maybe try an upgrade. Again: It's a business.
In the grand scheme of things, ForeFlight, while they are (repeat after me

a business, they have been excellent corporate citizens, supporting numerous aviation podcasts, scholarships, and other initiatives that are good for GA. They've had excellent support. They've been the leaders in the EFB market since day 1 because they're made up of GA pilots who are really enthusiastic about their product and use it themselves.
So, I continue to enthusiastically support them back. The Boeing acquisition hasn't changed a thing yet. Surely it will at some point, but until then I'll remain an enthusiastic supporter of a great product made by a great company.