> the years I start to thinking that this limitation was also a curse for communication overall on the platform
I would say the popularity of Twitter and its 140 character limit were a curse for communication fullstop. Globally, and irreversibly.
Facebook gets a lot of flak for being an echo chamber with targetted ads and disinformation, but Twitter never got the same level of critique in damaging online discourse.
Twitter specifically required people for a long time not to have long well-thought out ideas - but require hot takes and nothing else. Every political, social or economic position that was discussed had to be distilled to 140 characters - this effectively scrubbed nuance from any position. Along with retweets, this meant that all news, and all online discourse was reduced to "the hottest takes" without any level of complex thought.