Before the update that removed TA, the fastest way to get Gladiator points was to TA. You could get very long streaks indeed (40+) and those got you Gladiator points faster than anything else. Almost all the high-ranked Gladiators I know got their points largely from TA, with only a very few that got the majority from RA.
Without TA, it's harder to get Gladiator points. Even if you sync a full 4-man team into RA you're capped at 25 wins. With a slower rate of gaining Gladiator points it's only fair that the difficulty of the title be reduced similarly - think what happened when Gladiator points used to come once every 10 wins, but when it was changed to once every 5 wins its diffculty was similarly changed.
Exactly how much to change by I don't know, but a small reduction in difficulty seems most appropriate to me.
J

