1. Most applications don't need the warm-up since they aren't too critical to cold starts. 2. Cloud vendors are working and succeeding to make cold starts fast

1. Most applications don't need the warm-up since they aren't too critical to cold starts. 2. Cloud vendors are working and succeeding to make cold starts faster, and AWS is at the forefront. 3. Pre-warming done right is extremely cheap, you won't pay anything meaningful, just several cents per month. P.S. I'm the author of OP.