Yes. The only difference is the unit economics. You pay per request in serverless whereas you pay "constant" amount in Heroku. Don't think it should be too hard

Yes. The only difference is the unit economics. You pay per request in serverless whereas you pay "constant" amount in Heroku. Don't think it should be too hard for heroku to introduce price per request plans since they already have the infra for it (ala sleeping/waking dynos in free tier).