"We don't have to release a good game, if players have problems just let them mod with the tools we didn't give them"
(not at all saying these two games are bad, or bad for encumbering though)
ampersandrew's point was much more relevant towards a non-issue. At least in BG3's case (can't speak for Starfield) the game was definitely made with encumbering in mind.
PC gamers have tools to mod games. Mostly. Console players do not have this option. Mostly. While this may not be an issue, for you, does not make this a non-issue.