I appreciate your viewpoint but I personally disagree with this sentiment. To me, that kind of feels like saying in previous gens that if you allow a Baton Pass chain to get going, it's your fault. I know that Espathra isn't the same as Baton Pass and I'm not trying to construct a strawman, but I feel like it is somewhat analogous as an all or nothing win condition that has enough variability to prevent consistent and reliable counterplay from being guaranteed. In essentially every generation that Baton Pass has been allowed in, including the ones without team preview, you can almost always tell if you're facing a full BP team as soon as the battle loads. However, making sure that your team could counter whatever particular BP variant you were facing while still having your team be sturdy enough against the rest of the meta was too tall of an order for BP to be considered a healthy mechanic, so I believe that it's been banned or heavily restricted in every generation that it has appeared (someone please correct me if I'm wrong about that though; I'm not entirely well versed on the complete history of BP policy across all generations). I've written about this at length before so I won't repeat the points that I, and others, have already made, but Espathra's ability to win on matchup feels unhealthy to me and eliminates much of the ability to "play around it" if you happen to lack a check to whatever set it's running, which mirrors much of the problems surrounding BP. Blunder also draws this comparison in
this video of his and he advocates for the eventual ban of Espathra as well. Obviously, it's not like Blunder's word should be taken as gospel but he is an accomplished player and I agree with his position on Espathra (which is also shared by other experienced and accomplished players like ima, FlamingVictini, Bea, and AM, amongst others, I'm sure). So overall, I don't feel like otherwise completely viable teams always have the ability to game plan and play against Espathra, particularly because of Tera providing Espathra with enough important variance to keep it from remaining too predictable, and the arguments levied against Espathra stem mostly from this vantage point, not from the fact that it's simply "too strong" the way that something like Chien-Pao is.