Nothing has changed for the worse. Updates will come out more often, and if you want them you’ll pay a smaller amount annually instead of a much larger amount every few years.
There’s no longer a reason to worry about “buying at the wrong time” in the release cycle, as you get all updates for a year (or two) after purchase, and they come out as soon as they’re ready instead of big updates on unpredictable schedules.
Bug fixes in Opus 12 weren’t free to people who only bought Opus 11.
You pay us and get the entirety of our past work, and a year (or two, in this case) of our future work as part of the bargain. Seems a good deal to me.
In 2 years from now, if you don’t think our new work is worth paying for, then don’t pay; continue using what you already own instead. The version you own will continue to work, the same as always.