No you don't have to.
You have base healing from the main rit/rune which works similar to the healing rit/rune from before the patch.
You can add an additional component to it if you want but you don't have to if you prefer e.g. stagger.
From what I've seen someone do a math calculation you can get the same healing as before with a high healing bonus.
The bonuses from the extra rit/rune seem strong.
The 10 sec cd of the main rit/rune may turn out to be an advantage rather than a disadvantage because you can change positions more actively. GCD is omitted.
In general, it seems to me that we will use these additional rune/rit depending on the situation on the battlefield and not “throw and forget” as before.
I take such a situation as possible that I will have the main rune/rit running but the additional component I will run at times when it is needed.
I'm eager to try the new changes before I raise a lament on the forum.
The only drawback of the changes is the need for extra slots for skill bars but I can throw away dmg ablities

Thank you devs for your work on all the HEALERS in the game.