I don't quite agree with your statement. Most likely, your experts did not take into account that if a gambler has a lot of summary time for analytics or is completely immersed in sports betting (a professional bettor), then the number of his bets, on the contrary, can positively affect the number of winnings. This can be compared to an investment. For example, you can invest money in only one asset, or you can invest in 5. With the right approach, investing in 5 assets can yield a more significant profit. The same thing happens in betting - one winning bet can cover the losses from two lost ones.
There's no problem if you think that way. However, there are gamblers that just love to make a lot of bets which they can't even study the bets they are making, the increase of bets is just due to excitement they'll like to achieve, but in reality, the chances of wining is just neglected.
You have more bets to make, you also have more time to spend, it should go together, otherwise, it will not work.
If situation like this is carried out by small gamblers or with limited capital, they will only experience losses and lose all their money more quickly, sometimes small gamblers will be much more careful with their money.
Because they have limited money, they do various things to increase their chances of winning and minimize the risk of losing the money they bet, this is good attitude and should be done by all gamblers.
Sometimes those who have lot of money and can make money easily at work or in business don't really care and just do whatever makes them feel happy.
What is clear is that analyzing and doing some research on what is being bet on is very important and of course this can take quite long time if it is bet with larger amount.
There must be proper time management so that everything can be completed perfectly.