It sounds like what "investing" is to you is what you do, and what gambling is... is anything anyone else does ?
There is no rationale, no reason, in what you're claiming, which makes a distinction without a difference.
Investing, TO ME, is finding value on sale... buying it at a low price, and selling it again to someone else at a better price. A change of listing is only one of MANY things that might make a difference in the pricing of shares. The companies that uplist... are not really made any less risky because they've made that move, rather, they've made that move because they are less risky ???
Finding the "gems" before others have is the task... and making your money available to good managers to enable them in growing a business is what investing is... everything else is just "holding stocks"... for a longer or shorter period, at particular times.
There is risk in ALL stocks, although the risks are not equal... and the risk is minimized by being smart about determining what the risks are before investing, and then managing YOUR OWN exposure to them... ie, choosing good stocks, and using skill in timing buying and selling.
JMHO