I've been doing a few vana runs lately to farm for 5* mats (and to get my elite harness) and while doing so I've come across at least 5 knights who always asked for revs when they died, their excuse being "I've run out of sparks."
Someone care to explain me how a single person dies +50 times in a single day? I mean, you get like 50 from being a Vanguard, and I've found atleast 15 of those, now owning (ironically) 69.
That's why I like this change. As long as you're playing reasonably well, there's no way you can run out of sparks. A t3 run or vana usually gets you 2-3 sparks minimum, and you already get a free revive every level. The only place you can spend more than you gain is maybe in Shadow Lairs or danger missions, and even then danger missions refund you back a good number of sparks at the end. It just punishes the people who've been running in, kamikaze-style and relying on teammates to revive them instead of actually playing the game as intended.