It's really not the same in that data for KP1 was no where to be found on the disc. You can hold conspiracy theories that they completed these characters before the game launched but the fact is data miners found fuck all of any evidence for them and it's financially stupid for them to put more data on patch services than they have to. There was no incentive for them not to put it on the disc if they were done.But Capcom's on disc DLC of characters is no different than the 4 characters we got in MKx KP1. All that shit is premeditated. It's just instead of downloading compatibility packs and character data. It's already there. Capcom did fuck up in how they handled it though.
Capcom had their DLC on the disc and completed locked behind a small line of code. There was videos of dataminers playing the characters as they released a couple weeks after the game launched. Bit of a discrepency to say that charging for content that was polished and finished before launch is the same as charging for content that was not finished and polished before launch.
All that being said, Goro was on disc DLC so NRS is just as guilty of the practice anyway.