Free to subscribers is an interesting way to put it.
So...Photoshop CC (2014) did not cost CC subscribers any additional fee for upgrading...so, it was a free (no cost included) upgrade. So, I'm wrong that I called it a free upgrade?
If you are spoiling for a fight, I decline...as I said, I'm not going down that road again. A whole lot of people reacted irrationally to the changes Adobe enforced. That's on them (and you). I gave up caring about what they (you) think...
If you want facts and/or knowledge, I'll give it–if you want to rant and rage, screw you...and yes, the Photoshop CC (2014) full app upgrade actually enforces my statement that dual code bases resulted in Adobe dropping CS7...the original CC app needed to have a whole new code branch, hence the new CC (2014) code base. There's only so much Adobe can do with code before a new app code needs to be spawned. If you understood software development, you would understand this.