It was more out of concern!
It wasn't that Shan Baiwan was worried this batch of elixirs would fail, but rather that the phenomenon at the moment of completion would attract the covetous eyes of those undying old fossils from the Immortal Domain. Without The Supreme Emperor and Divine General Taotie present in the Heavenly Court, he and Baize, a mere two Quasi-Emperors, could not possibly stop those old monsters whose lifespans were running out.
Even though this was not an Emperor's Elixir that could increase one's lifespan or advance one's cultivation level, outsiders would never believe it. For the slimmest chance of survival, those old men would definitely act with bloodshot eyes, even if it meant bringing calamity upon their clans or their Tao Lineage.
BOOM! RUMBLE!
