There are not many words, 1625 is not much when you know the power of today's PCs. On my PC, with a Python script, I can test several billion possible combinations.
Currently, electrum uses a list containing 2048 words. The list you are referring to is for the old version of electrum's seed phrase.
That's what I don't understand. If I test the combinations and find for example one that has funds, it's over for the portfolio, right?
Yes. That's all you need. If you find a seed phrase which belongs to a funded wallet, you can spend the fund.
It would be easy to take 12 random words from the list of 1625 words and test and then repeat and that several times per second.
Whether there are 1625 words or 2048 words, it's impossible to access a funded wallet.
If you think you can do so, try it.