Yep, I dont think the “thor era” was that bad to be honest and never had a problem dealing with it. I know the nitro ones terrorized the lower arenas because people crutched him a lot with his availability. They could only go so far though, once you got into mid-high lib/early gyro, all the speedsters were faster and he just fell flat.
Now max is a completely different story, there isnt “a point” where he stops being good. He is just the best dino right now by a mile, so there is absolutely no drawback in dumping all the boosts you have into him, as you can effectively 3-0 someone with it if your opponent has a bad draw. Couple that with boost reset and we have the situation you describe.
Right now, if my opponent has his max and I dont have mine, its basically gg.