It is quite concerning to see the most recent post in about a year is just a way to change the blog URL. This was never a difficult thing to begin with... Furthermore, I think that there needs to be more updates and communication from the Blogger team. There are many things that could or should be improved from the platform not only from a performance standpoint, but just in overall functionality.
Any blogger site that is run through GTMetrix you will find many issues such as the caching of images, widget files, expires headers are out the window and a lot more....
Furthermore, there is not a whole lot of functionality that can put this on par with something like WordPress.. There needs to be a much better "widget store" or something where the widgets are organized. As it stands it is nothing more than an eyesore, with poorly made widgets, and ones that are no longer supported. There should be something like the WordPress repository for Widgets AND themes.
There is just a lot of progress that needs to be made with this platform, even Tumblr is making strives be a better CMS (some would argue its not a CMS but the same can be said for Blogger). Nice update since it makes things easier for new users, but there is still much to be done in my opinion.
This is also not my first time giving suggestions, I did get a response on the product forums, but it has been 2 years since then and there has been minimal progress.