Universally? maybe in the west, but I doubt the west can represent universal opinion. If pelosi want to visit more often, then we just need to increase the random stop and search. After all, there is precedent too in this since people seem to like precedent. The US did that so many times in the past with or without UN mandate.
As for Chinese gain, I predict it will make the west think twice before provoking China even more on taiwan issue, but that is my prediction. Just like your prediction that pelosi will visit more or the world will condemn China, which I disagree. As for the base of my prediction, I will use dolly lama case. Since China walk the wolf warrior diplomacy path, do we still hear about dolly lama visiting anyone recently? Playing hardball has its own merits.