There kinda is a goldilocks zone of showing there's a degree of viability to the idea of streaming Star Trek movies, but not have it be so successful that S31 becomes the template to the future of the franchise.Ideally you want bad things to have low numbers and good things to have high numbers so they're encouraged to make more good things.
Various trends over the last half decade or so have largely killed off the mid budget studio film. It's all megabudget blockbusters or low budget arthouse. The Abramsverse Star Trek movies ultimately burned out because they were too expensive relative to the potential audience.
Star Trek movies have only been sustainable in the mid budget range. So if mid budget movies have become streaming movies, then this is how we get more Star Trek movies.