On the one hand I agree, it was obviously a calculated move to bait sales before microtransactions were added, which is incredibly scummy. But on the other hand, if a game reviewer gave it a certain score before microtransactions were added and nothing was altered/removed from the experience that was originally reviewed, I guess I don't see the problem with the score they assigned at the time (assuming it was reviewed in good faith).
You can install it out of the box and disable game updates and not see any microtransactions, which will let you play it exactly as it was when it was first reviewed. You won't get to do any online play, but I guess the bigger takeaway in that case is that any game which relies on online/live service elements for continued engagement needs to have a big fucking "CAVEAT EMPTOR" on every review.
To be fair, most games these days have build in update checking, and more and more multiplayer games are always-online-or-piss-off type of games which shoot down your idea. I wish it was still possible in all games, but alas...
Right, but what I was getting at with how prone to change online experiences inherently are, it seems odd to rely on reviews to begin with. Sure I suppose it is irresponsible for a publication to make claims about the quality of an online experience, knowing that there is no guarantee of consistency over time, but the customer also shouldn't approach any online/live service experience with an expectation of consistency, because change is inherent to the model. Enjoy it while it lasts if it is fun, but again, caveat emptor.
The feeling of betrayal people have about online experiences is thankfully leading to pushback against live service models in general. Too many companies out there doing bait and switch bullshit.
If a game like Tekken happens to have a solid campaign and fun local multiplayer, I would be okay with leaving a good review up, because that is pretty much all that would have been reviewed ahead of time before there were other players to do online modes with. If a publication has a specific "no microtransactions" criteria, though, then I suppose they can do whatever they like afterwards. But anyone should be able to still obtain the day 1 version of the game and play it offline if you don't like the direction they went with its updates. You might just need to be more creative on PC to find them.