As long as you just shout, no one will talk to you. The const.default.ini can be changed, but it will be overwritten with the next plugin update. So what are you giving advice that doesn't help anyone. Especially since it is not a good idea to change the TTL for ESI cache because it leads to malfunctions. Exactly for this reason, the option to set the TTL of the ESI cache was removed from the plugin for Wordpress.
You give information about ESI even though you don't know what ESI is because you can't use ESI. Why do you write that ANY cache could be warmed up, which is not possible with ESI.