Yes, but LG already employs that technique on their TV's since the beginning. Their OLED's are all white with color filters on top. That sure hasn't saved them from uneven wear/burn-in.
So it's all white, vs all blue. Undoubtedly one of the reasons Samsung has gone this route is to circumvent LG's patents, same with Samsung's "QDCC" (quantum dot color conversion) vs LG's "CF" (color filter). They turned most adversities into theoretic IQ advantages in an impressive engineering tour-de-force but the lifespan disadvantage against other diode colors really can't be defeated. (but it can be mitigated, if they manage to make all their subpixels bigger/tighter against LG's implementation or, that they simply under-drive all the diodes further than LG)
That's not the only factor though, as some subpixels either lose more light in the conversion creating a disbalance (in LG's case, color filters are subtractive, so they nuke a whole spectrum of the light the moment it passes through them) or are simply more used than others (red and white comes to mind as we humans just love saturated and/or bright imagery - that of course can have a hit on the diodes assorted to red and white), hence manufacturers have resorted to making these subpixels different sizes. On LG WRGB OLED's, White LED is the biggest, then Red, then Blue, then Green. White is the biggest, Green is the smallest. It's a balancing act, color fidelity versus wear, both determine the subpixel layout.