I do not know if I understood correctly how you bet. Does this mean that in your opinion, when we do not know the league, but it is stable league, it is best to bet on higher odds?
No, he recommends to go against line movements that happen, when it gets nearer to kick-off. Just trust that the initial odds were more reflecting the reality than what the market/herd thinks and who then pushed the odds accordingly.
Example for better understanding:
Opening odds for home win: 2.00
Odds shortly before kick-off: 2.50
Now according to that user, you should bet (blindly) on that 2.50. The opening line of 2.00 was maybe a bit wrong and sharp bettors opposed it. Fair odds would maybe have been 2.20, but the herd drove it up to 2.50 (=overreaction), trying to join the ride. So this 2.50 carries some value now - maybe
Correct and no you will not get rich doing this. But if you are bored and want some action you will not usually go broke betting this way.