Sure, modify your theme to use `echo getCurrentPage()` additionally title which returns the current page number.
We might add a new helper function for this in the next release to cover starting with page 2 and some easier wrapping with for example brackets.
Thanks also for reminding that I have to add that to your own site as well… Official themes have a quite SEO outdated headline structure but being considered deprecated soon so will not get any change regarding the structure itself. But we'll look add the page number at least to what is there.