Avram,
if the question is should temporary minyanim become permanent, I am on the side of “no” with possible exceptions where people discovered that main shul was not for them for a very serious reason. This is not a new issue, chasidut started with breaking up communities like that.
from my point of view, it is still an issue of COVID. US is behind Israel and on par with UK and both of these countries are starting or considering rollbacks of relaxing. Delta’s R0 ~ 7 invites frequent burst that will helpfully be contained. Still with current decreased case levels due to vaccinations, both sides now have on what to rely, that is why I consider it not so important. Compare to good old times, when someone comes to a minyan coughing and sneezing. Some will offer an abi gezund and a tissue, others would move away and give him a look, and both responses are within reasonable limits.