I feel there is some validity in the initial post. I'll consider what I believe to be the two major assertions separately:
1. The Super-tight Pockets Make it Almost Impossible for Anybody to Dominate the Sport
I believe this to be largely true. The formula for winning has changed and those that tended to dominate with their break are no longer doing it. The 4" pocket, nine on the spot with a break box version of 9ball has been in use in the "field of 256 Matchroom majors" since August 2022. This equipment and rule set tend to bring more tactical play into the mix, and those unable to grind are not enjoying as much success as in the past. At Large stats show time and again that the break is less of an advantage than it ever has been. Even the three pack has become a very rare commodity and everybody is getting to shoot. Underdogs no longer have to sit in the chair for several racks at a time.
2. Super-Tight Pockets Favor the Weaker Player
With this suggestion, I disagree, but I would agree that a slightly less skilled cueist with very solid tactical skills has a better chance than in the past and, as the original post suggests, Cinderella stories are more likely than in the past because of it. Hence, these super-tight pockets CAN favor the weaker player, if the weaker player has a skill set that befits these conditions.
I short, while I can't accept the strong blanket statements made by Smoochie, I find some wisdom in the original post.