in HERo 4, damage shield was +1/2 advantage. It worked OK for simple obvious damage shields based on normal attacks like fire, the human torch waorked out Ok, but there were some odd balance issues when things like NNDs, drains, and non-attack powers like clinging were used.
EXAMPLE: Human torch could, for the same cost as a high end of the range 12d6 firebolt buy a flaming body that would cause 8d6 to anyone who hit him... the low end of the range. Enough to actually hurt a typical super with defenses in the range of 15-25, a little, when he hit the torch. Thats not, in practice, unbalancing and plays out well. That was 4e.
in HERo 5, they added a requirement for an additional +1 advantage for damage shield, which raised its effective cost for normal attacks thru the roof. So now, in 5e, its really not worth the points to use it for normal fire human torch like powers and is only really effective for those oddball nnd, drain, or clinging type powers... which are better balanced at +1.5. (tho they did tack on some other advantage options...)
EXAMPLE: Now, in 5e, he can get only a 5d6 damage shield at that range for 62 pts instead of 60... enough to only slightly warm up supers in the low end of the defense spectrum and useless against those in the upper end. For the same price the 12d6 Eb is still very very effective.
On the HERO boards, you will find plenty of threads with just a quick search about how badly nerfed damage shield was between 4 and 5 and find some people OK with it because they saw abusive oddball damage shields in 4e and how others are not.
So, you know, claiming that HERo doesn't between editions/revisions change costs for balance and doesn't "effectively" nerf some normal, in genre, previously not a balance issue powers/components in order to handle the wingnut abuses possible... is not exactly accurate.
Not that i would dream of challenging the original premise of this thread with facts, mind you.
After all, citing facts to challenge claims of HERo system superiority will get you pegged a hero basher.