It is more simple to attract money on IEO that on ICO. But a fully regulated STO is much more better then IEO.
It is necessary to get approval of financial regulator to conduct a fully regulated STO. That is why STO is so rare.
Now financial regulators do not have a big practice with STO. There are a few STO and many businesses do not hurry to tokenize their assets.
Now STO are very rare. STO of Blue Hill Mining will be fully regulated. That is why it is necessary to get approval from financial regulatory.