This article writes about seats getting narrower.
Is this really the case ?

My experience is not that bad. For my almost 2 meters height I can live with 32" seat pitch. And in the past (1980s and 90s, also long hauls), 29" was more common and seats were more cramped, but flights were less fully booked, so sometimes I could use 2 seats.

Latest years I flew EK, KL, SQ and MH (all long haul) and leaving KL behind the other three.

I always check seatguru.com for seat pitch. EK even differs between the 777 and 380, the latter having slightly more legroom and seat width.

I have heard (no own experience) that the 787s of QR are awful, much worse than their 777s.

Is this article really right ?