As a 3rd gen owner and impartial viewer of this internet pissing match
TRD Pro owners seem to get hated on simply because they can afford the Pro. Class Warfare - Poor people hating on those richer than them is a common thing in society. Is an iPhone better than a Samsung, no the samsung has better hardware everyone knows this, but Samsung users hate on iPhone users whose phone costs $150 more. Apple does better job with marketing and design.
The Trail Premium is better truck and better value than the Pro, the pro just has some tinsel and better marketing. Your Trail is a Samsung Galaxy and the Pro is an iPhone
TLDR version: non Pro owners are jelly and butthurt theyre priced out of the top model