I looked up the TOS myself, and this is what it said:
https://legal.wbgames.com/mortal-kombat-11-legal/sony/terms-of-service/mk11_tos_ps4_en_GB.html
4. Account Suspension/Deletion
WB GAMES MAY SUSPEND, TERMINATE, MODIFY, OR DELETE YOUR ACCESS TO THE GAME SERVER AT ANY TIME FOR ANY REASON OR NO REASON, WITH OR WITHOUT NOTICE TO YOU.
In using the Game you also agree not to:
- use any data mining tools, robots, virus, worms, bugs, or similar data-gathering and extraction tools on the Service, or frame any portion of the Service, or attempt to tamper, hack, corrupt, or impair the administration or security of the Service;
...
And since this is a bug people are using to unlock those chests, there's a possible chance WB might hit down hard on people. :/
They'd be smarter to just patch the exploit and go about their day.
"Can you not see, WB is the devil in these matters?"-Cetrion, 2019
NRS knows damn well people aren't about that grind. Shit, there's still some major grinds in the ToT and not even to mention the Souls and Hearts are a grind to get too. The whole game is a grind fest. To punish the people who found a way to lessen that grind and get around it would make them look like assholes and they don't need that type of press rn considering they're not doing too hot as is.
Like I said before, it'd literally look like they're saying "Hey! You didn't grind the game for months like we wanted you too, so now you're getting banned." There's no way they can twist it to make themselves not seem like the bad guys after all the negative publicity they got for the ToT difficulties and grind. They gotta play this shit safe and the safest thing to do would be to just sweep it under the rug.
People abused the hell out of Injustice 2 gear and legendary gear exploits. People got legendary gear on ps4 within 2-4 days by resetting items. Basically trading in items, resetting the game/time, and get the same items again to trade back in. Which directly affected gameplay in gear mode by getting items with insane stats/abilities.
This. I did this exploit as well (because I Legendary Gear was bullshit. I still never got all of them.) and never got banned. And Legendary gear actually affected the gameplay.
Patch out the exploit and lower the fckn grind so people won't feel the need to use them in the first place. 75 Brutalities, 75 Fatalities, 100 crushing blows, 25,000 total blood spilt. Like come the fck on bro. This doesn't equal longevity. I don't look at that and think "Oh wow, I can't wait to go through this with every single character for months to come!" No, it's discouraging and messy. If you only main one character and don't give two shits about the rest, it's a non-issue. But wanting to unlock everything for everybody? No bueno bitch.
It also doesn't help that none of the shit you've done prior counts. It's not like you can play all these characters and all the shit you do adds up and then by the time you summon their tower it's counted. Nah.
But then we've also gotta take DLC characters into account. We're gonna have to grind for their stuff too! By the time this game is done being supported, whether it be a year, 2 years, 3 years, whatever. I should be able to look back on it and feel "Wow, I got my money's worth and experienced everything the game had to offer." not "Welp, missing out on 37 legendary gear pieces cause I could only bear the grind for 1." But times 4 because besides gear it's skins, animations, taunts, and fckn brutalities as well.