It's just a difference in encounter design, and neither is good or bad as it mostly depends on personal preference. My main gripe with the current healer design is that, once people have mastered a fight, it makes healers lose their relevancy besides handling the occasional AoE or Tank Buster that happen on a very scripted and predictable interval.
Just look at Aglaia for instance. It was fun when it first came out, specially fixing one of those two-strikes you mention. Nowadays it's mostly Glare, Glare, Glare, with the occasional off-GCD heal when an AoE comes. It obviously depends on the player's skill, and whether they are familiar with the encounter or not, but that's the general trend I see. Another example is how some groups prefer to run 1 Tank, 3 DPS for the Expert Roulette.
I like the whole "green DPS" meme as much as anyone else, but if I'm being serious for a moment, at that point I wonder why not just strip the role completely and just handle the healing responsibility to each person like in PvP.