By limit I mean the scope of it’s impact is limited. If new ideas become new words then language isn’t a limitation on idea formation, expression, or spread.
Sure some ideas might spread more easily as say an obvious and catchy campaign slogan, there is a maximum benefit to such advantages. “A fair day’s wage for a fair day’s work” is longer say “No taxation without representation” but number of works doesn’t seem to be a major limitation here. People just encode such ideas into otherwise meaningless slogans like “Promises Kept.” Soon people don’t wonder what “The wage gap” or “Pro life” is referring to.