Yeah no. Very few companies would intentionally leave stuff in for data miners to find to generate hype. Game Freak is not one of them. Also that UB theory was really dumb, with only Lillie and maaaaybe Guzma bearing any notable resemblance.That's exactly what I am on about. Just like in SM the UBs and Necrozma triggered a whole slew of speculations such the UBs being metamorphosis of the known characters…… these sprites are possibly there to intentionally incite discussions and theories.