The subscription is not as big of a deal as everyone is making it out to be. You don't have to quit hopscotch, you can use it as a free user. You don't lose any features, everything already in the app stays free for free users. The free version will still be updated, just not every feature will go into the free version.
So just chill out. It isn't that big of a problem, and all of you are overreacting.
And if you still are upset with the update, you can't be mad at THT. They are a company and they need to make money to keep making HS.