Some thoughts came into my mind:-
1. Lately, i noticed that online Youtube-Shorts dancers dance better than members of blackpink for their recent tracks. Other than Jisoo aging gracefully, the rest became uglier, eg Rose and Lisa. Jennie got no tits but kept wearing ultra low-cuts, i think she will show her nipps soon.
2. This might be part of their transformation; many western pop teen-stars resort to this more clothes or turning more satanic when they are not SYTs anymore.
3. On a positive note, these changes could hint that they are catering or growing old with their earlier fans. They have been active for a decade. Looking back, I couldn't accept new MayDay (五月天) songs or performances because they didn't grow old with me; they just focused on those below 30 or China market, and we drifted apart.