100% intentional. Their goal as a company is not to alienate a large part of their base, which are DOS1 and DOS2 players that have either 0 or a tenuous grasp of 5e.
Snip the rest of your quote since the mods don’t like us to quote long text.
The more you analyze the game, the more you realize how disingenuous Swen’s quote is when he said they really tried to build BG3 as a 5e game and then had to make modifications.
This game was meant to be DOS3 but since Larian got the BG3 license they are hoping to cash in on 5e players too. They want their cake and eat it too.