*sigh* I have mentioned this already once before in another similar thread but....

So SE publishes an official FFXIV magazine in Japan, and the issue for patch 3.4 came with the Eorzea Job Change Guide for healers (these are aimed at players that already have some experience with the other 2 roles and want to try out healing). And this is a page from it:



the header for this page says:
Healers can DPS too
There is a merit to DPS'ing as a healer since fights will end faster. However, don't forget about about your primary role, so slowly get used to partaking in DPS'ing
it then has the following points:
1. look for a change to DPS
2. get used to cleric stance when DPS'ing
3. remember your DoTs when DPS'ing
4. don't forget your primary role

So yes, learning when and how to stance dance is part of a good healer in FFXIV and SE agrees. So stop looking for excuses to be lazy in group content.