Simpler ASP.NET Core startup?

Program.cs

using System;
using System.Task;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;

namespace HelloWorld
{
    public class Program
    {
        public static void Main(string[] args)
        {
            // Step 0: Single line Hello World
            // Runs using Kestrel on port 5000
            WebHost.Run(context => context.Response.WriteAsync("Hello, World!"));
            
            // Step 1: Change the listening port
            // Runs using Kestrel on specified port
            WebHost.Run(8080, context => context.Response.WriteAsync("Hello, World!"));
            
            // Step 2: You need to add middleware or anything else
            // Configure returns an IWebHostBuilder so now you're into the standard pattern
            WebHost
                .Configure(app =>
                {
                    app.UseStaticFiles();
                    app.Run(context => context.Response.WriteAsync("Hello, World!"));
                })
                .Run(8080);
            
            // Step 3: When you want to run things that need services, e.g. MVC/dynamic server-side HTML (Razor Pages), Authentication, etc.
            // ConfigureServices returns an IWebHostBuilder so now you're into the standard pattern again
            WebHost
                .ConfigureServices(services =>
                {
                    services.AddMvc();
                })
                .Configure(app =>
                {
                    app.UseStaticFiles();
                    app.UseMvc();
                })
                .Run(8080);
                
            // Step 4: You add logging and configuration
            // Now we're starting to get to something truely useful
            WebHost
                .ConfigureServices(services =>
                {
                    services.AddMvc();
                })
                .Configure(app =>
                {
                    app.UseStaticFiles();
                    app.UseMvc();
                })
                .UseLogging(logging => logging.AddConsole())
                .UseConfiguration((builder, env) =>
                {
                    builder.AddJson("appsettings.json");
                    if (env.IsDevelopment())
                    {
                        builder.AddUserSecrets();
                    }
                    builder.AddEnvironmentVariables()
                           .AddCommandLine(args)
                })
                .Run(8080);
            
            // Step 5: You want to move to a Startup class
            // All the services & HTTP stuff has moved to your Startup class
            WebHost
                .UseStartup<Startup>()
                .UseLogging(logging => logging.AddConsole())
                .UseConfiguration((builder, env) =>
                {
                    builder.AddJson("appsettings.json");
                    if (env.IsDevelopment())
                    {
                        builder.AddUserSecrets();
                    }
                    builder.AddEnvironmentVariables()
                           .AddCommandLine(args)
                })
                .Run(8080);
        }
    }
}