its not advised to just shieldspam, since the talent will get nerfed, it already got nerfed. And if people start healing like that, it will get nerfed more.
Plain simple u dont need to use that playstyle to be a great discpriest. Im a haste disc and just throwing out heals and shields at same time, get u very high on the healmeter. In a fight like mimiron, im tophealer behind uberdruid not even counting absorbs just pure healing.
Offcourse unlike u, i stack spellpower now to improve my heals, since that lacks as discpriest.
In the end for all discpriests, its best to learn to use all your healingspells to stay near the top then abusing one spell, if everyone starts your playstyle, u can be sure the talent will be removed since blizz doesnt like one buttong spells. then again just spamming shields randomly doesnt cut it, since sometimes u cant spam em fast enough.
but im having great fun as disc, using almost all my heals.. only doesnt use poh since i think it sux
its too slow, and when paired with decent healer every player will be topped off before it hits.
When u speed up your heals with shields, u start to burst out alot of healing.
your playstyle is like holypriest only using coh and we all know how that turned out in the end.
play how u like but dont spread your playstyle on other people. every noob can spam shields,