Yeah I don't think it is as big of a deal these days but still it is the principle of it all in my books, it is a joke that the GS 6 (one of, if not the most popular android handset) is only just starting to get MM in the last few weeks as iirc, not much changed from LL aside from some under the hood improvements for performance etc.
I thought N would be a bit meh at first but it contains a lot of nice UI visual tweaks i.e. multi-tasking, notifications & toggles pane, DPI setting, possibly a dark mode/theme, multi-tasking windows, further improved doze mode, freeform window mode, screen calibration controls and a bunch of other neat things, no doubt more stuff will be added over the course of this testing too as the final release isn't due until September iirc.
Certainly a lot more exciting than MM anyway, although obviously the GS 7 and some other phones already have a number of those things but usually google's take on this stuff is better implemented imo.
I really do hope the rumours of google addressing OEM updates with N are true but given that this was supposed to be addressed to many times before with previous android updates, I won't hold my breath.