I get the concerns, but in their lifespan development, Universal is decades behind Disney. I don’t think a bumper sticker with Lil Boo spells disaster.
I feel like you’re describing a Bread and Circuses situation. Universal is continuing to develop lands, attractions, and a whole new park. If development ever slows to a trickle, and the only thing to get us invested is Lil Boo, then you should be concerned. But right now, consider it a fun harmless bonus, not a harbinger of the end of times.