It’s generally a reflection of what the labels dictate.
I think it was always regarded as personal use as Beatport has always said the same yet they offer the pro plan.
Most, if not all, media we buy at consumer level is personal use. To use it in a professional environment licensing fees get really really expensive. Professional use swings more towards music or audio licensed for use in movies or theatres, corporate presentations, TV programmes or samples in songs.
With pre-recorded audio there’s always been this clause and that applies even with media you’ve physically purchased like records or CDs. Mojaxx did something about this on one of his YouTube videos regarding licensing and said it’s absolutely okay to stream Beatport and Beatsource when playing out for gigs. I’ll find the video as I linked to it in here before. It’s why there were created.
Tidal push the add-on for DJs as they get extra cash. They’d quite happily sell you the plan but in their terms and conditions write that it’s for home DJ use only!
Here as link to a discussion we had regarding purchased tracks (not streaming) which have pretty much the same wording in their clauses:
Vince solved it with (check your local restrictions to see if it’s legal) and answered in the first post: