What he doesn't do is the nasalisation of vowels before -ns or -nf (as in consul or in conferre) or at the of a word (volutabrum)
Myself, I'm not very concerned about nasalization, since, as far as I remember, all we know for sure is that at some point "n" before "f" and "s" simply disappeared by the language evolution... like completely (in the natural spoken dialects), no nasalization, nothing (just like we observe in Greek with some nouns or participles, e.g.: gigas, gigantos), the only leftover there was was a compensatory vowel lengthening (if I remember correctly). Then, maybe, supposedly in the classical age and maybe just in the literary dialect the "n" before "s" and "f" was
perhaps restored again (probably with an antiquated orthography as a guide), now the question is: restored as a nasalization or maybe for a literary effect as a full consonant? Plus, had the before-gained long vowel been retained while this was done? Probably so...
So, nasalization or altogether omission of "n" or "m" at some positions is for me a ... fact (when it comes to the evolution of Latin as speech)... but a slightly controversial issue when it comes to the "literary" dialect (Romans reciting, reading aloud, etc. etc.) - the dialect we use. So, I don't care so much whether people do it or not, I sometimes nasalize, sometimes I read it fully. I more focus whether people get the vowels correctly, at least the qualities, the quantities are important for me too, but if even the quality is wrong... then it's a lost case :-/
I've always wondered what that sounded like ... I suppose a native speaker of French might get closest to that?!
Well, phonetically there aren't many ways to do a nasalization, it's just... one simple process
But it may be stronger or weaker, yes... But any real nasalization you do, should work.