>>25618617
Same reasons as your regular meat. Proponents say it's better, but the same issues are still there. Plant based alteratives are better than insects on every measure. Plus people aren't grossed out buy it, and it's not as expensive as insects
People who care about the environment would rather just eat less meat and introduce plant based alternatives to their diet.
People who don't care don't care and are gonna carry on doing what they do.