I’d give you that, but Blizzard really screwed the pooch on this one. It wasn’t an assumption, it was based on their role queue announcement and apparently not wording it well at all based on recent announcements.
To borrow from an above poster:
However, beta season stats will only be available for a limited time and will not count toward a player’s permanent Competitive Season stats.
Source: Introducing Role Queue
Now we suddenly hear:
The results of your matches in the Role Queue Beta are not being thrown out and will be used by the matchmaking systems to help determine your skill in season 18.
That’s not assuming, that’s making a logical conclusion based on an official statement then having a weak “clarification” that they only meant profiles as justification at the end.