The way I see it is that with soul stones and soul stone fragments out there, there is no reason for any PvPer not to have 3 or 4 ways to heal themselves along with pots.
Group A is to lazy to work their skills or temples so they now have disadvantage to Group B , who has used all means of staying alive.
Group A screamed loudly that they are being treated unfair.
Group A has caught the Dev teams Attention and the Dev team just can't pass up a Chance to fix something that is not broken.
Honestly how many PvMers do you hear yelling that they cant heal themselves against a monster?? Not many.
This timer will only hurt PvM'ers and Solo fighters.
In the long run will not help Pvp at all, there will always be a Group A that will scream and yell that they are being treated unfairly.