i dont know about old players not playing anymore because of it, that sounds a bit presumptuous to me.
isn't everything except chivalry capped at 2/6 casting?
summon fey is broken yes... for loads of reasons lol. the mana cost's wrong, but the biggest thing is the pixie's magery skill, they are only supposed to cast up to like level 3 spells, on here they're flame striking you and shiz, plus the health is way higher than it should be. but meh, i dont mind personally, there is loads of things which aren't quite like OSI on here. stopping mages using their heal spam button would change the game for way too many people and make their main characters obsolete. that really would stop people playing :/
i think you're pvping wrong tbh, from my experience (which is admittedly very limited) the way to counter anything in this game is to have more people than they do, and get them attacking the same person. mage heal spam locks them up and counts for shit when you have more than 1 person attacking
as for steam... i dont know really either way, but it does make a difference.
i'll level with you, the only time i've been consistently interrupted trying to cast a 4fc chiv heal was by someone holding a steam button for harm, and i think it's simply because the interface for steam shaves fractions of a second off the cast time, which actually do make the difference. they literally cannot do that with razor.
but i just upped my dex to 140 so i can heal more with bandages to counter it. that's what you've gotta do, try to think of a way to counter it, not ask them to change the rules
or you can say if you cant beat em, join em. but personally i'd rather die trying