Swapping spells is a matter of time and convenience. Fast casting and spell point pool affect gameplay mid-quest. I don't view them as the same.
Cordovan did mention on today's Friday's at Four that they heard this particular piece of feedback. Not sure if they'll change it, but they did hear you. I hope they don't change it and still view it as a QoL change that will have an overall positive impact on the game.
No, let's see, spells are the basic power tools of spellcasters. By design, spontaneous spellcasters have a reduced spellbook to compensate for other perks they have and that prepared spellcasters lack.
The limited spellbook is a class FEATURE. Having limited tools, aka spells, is a class FEATURE. Changing that trait changes the power of the class, very positively. A spontaneous spellcaster is not supposed to be able to freely switch spells as he pleases.
Fast casting and spell pool are other class features, exactly like the limited spellbook. You can't say "I like this class trait better, I'm going to give it to those who don't have it, but I'll retain this other one." No. If it seems wrong to you to share one, it should seem wrong to you to share the other. After all, is it more dangerous for the wizard to cast spells faster than for the sorc to have perfect spells for each quest, a trait that does not belong to him?
I'm glad devs listened to me. And I do hope they change it. It's ok to change spells in public areas, go ahead with that. It's not okay that spontaneous spellcasters don't have any cooldowns. If they want to give them some facilities, ok. But stop the madness of altering class traits so happily.