Glad to hear your purchase turned out well.
Certainly in regards to bass, power is required especially with higher SPL. Receivers 'can' run out juice depending on how loud you like to playback sound.
All that being said, no, you won't damage the M80s with that amp. The worst scenario is to be driving speakers with an underpowered amplification source.
An amp that has more power than a speaker could handle is the better of the two situations. If anything you would drive the speaker to its maximum driver excursion point and you would hear a 'thuck' or 'thump' noise. With an underpowered amp you could drive it into distortion by turning it too loud beyond its specs depending on the load provided by a speaker which commonly fries tweeters.
Just so you know, Axiom tests speakers regularly and when i was at the factory about 10 years back, Ian had some M80s hooked up to two Bryston amps and blasted them with 700W of Slayer heavy metal.
You can see the pics of the testing room here:https://www.axiomaudio.com/boards/ubbthreads.php/topics/34543/2